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Physics Test 147

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Physics Test 147
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Weekly Quiz Competition
  • Question 1
    4 / -1

    The electrostatic capacitance depends on

    Solution

     

  • Question 2
    4 / -1

    A charge Q is enclosed by a Gaussian surface of radius r. If the radius of the surface is doubled, then outward electric flux will be

    Solution

    It means that, the net flux depends only on the charge enclosed by the surface. Thus, there will be no effect on the net flux, if the radius of the surface is doubled.

     

  • Question 3
    4 / -1

    In the arrangement shown in the figure, the charge supplied by battery will be

    Solution

     

  • Question 4
    4 / -1

    Path of a charged particle in electric field enters at angle 30° from the direction of electric field is

    Solution

     

  • Question 5
    4 / -1

    If an electric dipole is enclosed by Gaussian surface, then net electric flux passes through the surface is

    Solution

     

     

  • Question 6
    4 / -1

    An electron and a proton enter a magnetic field perpendicularly. Both have same kinetic energy. Which of the following is true?

    Solution

     

  • Question 7
    4 / -1

    The net magnetic flux passing through a closed surface is always

    Solution

    According to Gauss law, the magnetic flux through the closed surface is directly proportional to the number of monopoles and monopoles doesnot exist in case of magnet. Thus, magnetic lines of flux is zero.

     

  • Question 8
    4 / -1

    The secondary to primary turns ratio of transformer is given as 2 : 3. If the current passing through the primary coil is 3A. Find the current through the load resistance.

    Solution

     

  • Question 9
    4 / -1

    Torque on a current carrying rectangular loop placed in uniform magnetic field is maximum, when its axis makes an angle with the direction of magnetic field is

    Solution

     

  • Question 10
    4 / -1

    For L-C-R circuit, the power transferred from the driving source to the driven oscillator is 

    Solution

     

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