Phy101 Quiz 3 Solution Fall 2022 LECTURE (23 to 30)

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In this post we are providing you MHT202 Quiz-3 Solution Fall 2022(23lec to 28lec) 100% correct or right solution. You’ll Download assignment Solution File From below download (Click Here For Download File) link interface

Open date feb 08, 2022

Close date  feb 09, 2022

1.      Lenz’s law is in accordance with law of conservation of

                                    Energy…confirm

2.      Which of the following types of electromagnetic radiation at the greatest speed in vacuum?

                                  All of these travels at the same speed…..confirm

3.      Inductive reactance XL of an inductor is

                                                 2(pi)fL….confirm

4.      Force per unit charge is:

                                   Electric field intensity…confirm

5.      The sum of electric and magnetic force is called

                              Lorentz force…confirm

6.      Radio waves and light waves are ______.

                       Electromagnetic and transverse both…confirm

7.      Kirchhoff’s 1st rule is the manifestation of the law of conservation of

                                           Charge…confirm

8.      Kirchhoff’s 2nd rule is the manifestation of the law of conservation of

                               Energy…confirm

9.      The total energy in an circuit is 5.0 * 10-6 J. if L=25mH the maximum current is:

                                           20mA…confirm

10.  If Io is the peak value of an AC supply, then its rms value is given as firms

                                               Io/square root2….confirm

11.  The potential difference between the ends of a conductor is 12V. How much electrical energy is converted to other forms of energy in the conductor when 100C of charge flows through it?

                                                       1200J….confirm

12.  A particle carrying a charge of 2e falls through potential difference of 3V the energy acquired by it will be:

                                          6 eV…confirm

13.  An inductor may store energy in its:

                                        Magnetic field…confirm

14.  The graphical representation of Ohm’s law is:

                                               Straight line…confirm

15.  Radio waves and light waves are _______.

                                      Longitudinal waves…confirm

16.  The increase in capacitance of a capacitor due to presence of dielectric is due to:

                                              Electric polarization

17.  The Focal length of convex lens is:

                         Positive…confirm

18.   The AC circuit in which current and voltage are in phase the power factor is

                                       1…confirm

19.  The wavelength of red light is 700 nm. Its frequency is ______.

                           4.29*10^14 hertz…confirm

       21.  The known laws of electromagnetism before James Clerk Maxwell were following EXCEPT

                             Faraday’s Law…confirm

20.  When some dielectric is inserted between the plates of a capacitor, then capacitance;

                                        Increased…..confirm

21.  Which of the following is NOT the characteristics of electromagnetic waves?

                       They can travel with different speeds in vacuum depending on frequency…..confirm

22.  If electric and gravitational force on an electron in uniform electric field balance each other, then the intensity of electric field will be:

                                   Mg/q

23.  The increase in capacitance of a      

          

24.  Electric energy is measured

                                      WaTT…confirm

25.  When we accelerate the charge, which types of waves are produced

                                            Electromagnetic waves….confirm

26.  A particle device transmitted a signal in the form of electromagnetic waves of frequency 7.5 * 108Hz. What is the wavelength of the signal.

                                            0.4m

27.  A step-down transformer is used to:

              Decrease the voltage

27.   The quantity of deltaV/deltar is called

                                    Potential gradient

28.  Which electromagnetic radiation transmits the highest photon energy?

                                      Gamma rays….confirm

29.  The reaction of an particle at 50 Hz is 10.0 its reactance at 100Hz becomes

                                       5.0        

30.  Work done on a charged particle moving in uniform magnetic field is

                                                           Zero….confirm

31.  Select the correct statement

Gamma Rays have higher frequency than infrared waves…confirm

32.  Which of the following have the greatest wavelength

                               Radio waves

33.  Potentiometer can be used as

                           Potential divider….confirm

34.  All of the followings are the different types of mental images; people generally experience them while close their eyes Except:

                            Solving an algebra equations

35.  The nation that motivational state of the organism is understood and explained in terms of positive and negative environmental stimuli BEST connects to;

                                      Incentive approaches

36.  If one wants to increase the capacity of short-term memory, through which process more items can be held?

                                      Chunking….confirm

37.  Which physical quantity is produced by a calculation where a charge is

                                                Energy…confirm

38.  The current in a car headlamp is 2.0 A. The Headlamp is switched an for 3.0

                                            360 C

39.  If potential difference across two plates of a capacitor is doubled, then                          

                                                Four times….comfirm

40.  How could the unit of potential difference the volt also be written?

                                           J/C

41.  If magnetic field is doubled then magnetic energy density becomes

                                             Four times….confirm

42.  The primary of a 3.1 step-up transformer is connected to a source and the secondary this situation is P. If R is connected directly to the source it will dissipate a power of:

                                        P/9….confirm

43.     A particle having 2e charge falls through a potential difference of 5.V energy acquired by it is

                                                 10 eV

44.  A generator supplies 100V to the primary call of a transformer. The primary has 50 turns and the secondary has 500 turns. The secondary voltage is

                                               1000V

45.  The combined effect of resistance and reactance is known as

                                   Impedance…confirm

46.  A transparent refracting medium bounded by the two curved surfaces called

                                           Prism….confirm

47.  A student rubs a rod held in his hand. Which action causes the rod to gain a large electrostatic charge

                                    Rubbing a polythene rod with a woolen duster….confirm

48.  A charge of 30 C flows through an electric appliance in 2.0 minutes. What is the average current in the appliance?

                                   0.25A….confirm

51.  Total flux through a closed surface depends on

                                                     Charge and -N...confirm

49.  Electromagnetic waves emitted from antenna are

                                      Transverse….confirm

50.  Two parallel straight wires carrying current in same direction will.

                                     Attract each other…confirm

51.  Charge carriers in electrolysis are:

                                           Positive and negative ions…confirm

52.  Capacitive reactance XC is

                                    1/2Ï€fC

53.  The number of turns becomes double, but length remain same then magnetic field in the solenoid become

                                  Double…confirm

54.  If velocity of a conductor moving through  Magnetic field B is made zero then motional emf is

                                 -vBL

58. The amplitude modulation frequency ranges from

                       540 kHz to 1600 kHz…confirm from net

55.  Average value of current and voltage over complete cycle is:

                            Zero..confirm

56.   A detector is used to detect the speed at a particular wave if the frequency of an electromagnetic signal is 400 MHz, the speed define the detector is

                                        300000 km/s

57.  The product of resistance and capacitance is called       

                                            Time….confirm

58.   Greenhouse gases absorb ____ radiation

                                   Infrared…confirm

59.  In RL series circuit phase angle is given by:

                   tan  1(wL/ R)…confirm

60.  One tesla is equal to

                              N/Am

61.      An LC series circuit an inductance L and a capacitance C has an oscillation frequency f. Two inductors each with inductance L, and two capacitors, each with capacitance C, are all wired in series and the circuit is completed. The oscillation frequency is:     

                                     f…..confirm      

62.   Capacitance of a capacitor in vacuum is given by

                                                       Aεo/d….confirm

63.  Force on a charged particle is zero when projected at angle with the magnetic field

                                              0 degree….confirm

64.  If an electron of charge is accelerated through a potential difference V, it will acquire energy.

                                                       Ve….confirm

65.   In case of metallic conductors, the charge carriers are:

                                                  Electrons…confirm

66.  Tesla is a unit of

                                 Magnetic flux….confirm

67.  When a charge is projected perpendicular to a uniform magnetic field, its path is:

                                                                  Circular…..confirm

68.   Electromagnetic waves do not transport                           

                                                          Charge….confirm

69.  The concept of an electric field lines is introduced by

                                         Faraday….confirm

70.  A capacitor in an LC oscillator has a maximum potential difference of 15V and a maximum energy of 360 uJ. At a certain instant the energy in the capacitor is 40 uJ. At that instant what is the emf induced in the inductor

                                                       5V….confirm

71.   The wave form of alternating voltage is a:

                                             Sine wave….confirm

72.  If velocity of a conductor moving through a magnetic field B is made zero then motional emf is:

                                                          -vBL…confirm

72. Which one of is in the order of decreasing frequency?

                                Ultraviolet rays, visible light, radio waves…confirm

73.   The lenz’s law refers to:

                                  Induced current….confirm

74.  Which of the following  statements is Not true about electromagnetic waves?

                               The electromagnetic radiation from a burning candle is polarized…confirm

75.  Phase different between V and I of on A.C through resistor is:

                                            0 degree

76.  Which of the following is equivalent to 1 V

                                           1 J/C…..confirm

77.  Which of the following is equivalent to one coulomb

                                  One ampere second….confirm

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