Potential difference is the work done in moving unit positive charge form one point to another________________?

Related Mcqs:

1. A charge of 0.10C accelerated through a potential difference of 1000V acquires kinetic energy_______________?

   A. 200J
   B. 100J
   C. 1000J
   D. 100 eV

2. A 5 μF capacitor has a potential difference across its plates of 200 volts. The charge on the capacitor is____________?

   A. 2.5 x 10-8 C
   B. 10-5 C
   C. 103 C
   D. 4 x 103 C

3. The emf induced in a conductor of unit length moving with unit velocity at right angles to a magnetic field is equal to_____________?

   A. Magnetic flux density
   B. Torque
   C. Mutual induction
   D. Motional emf

4. The electric charge of 100 °C is 13cm apart from another charge 16.9°C electric force between them is_____________?

   A. 9x107N
   B. 900N
   C. 9x105N
   D. 9x106N

5. If a third equal and similar charge is placed between two equal and similar charges, then this third charge will_____________?

   A. move out of the field of influence of the two charges
   B. remain in stable equilibrium
   C. not be in equilibrium
   D. be in unstable equilibrium

6. The direction of electric field due +0 positive charge is ___________?

   A. away from the charge
   B. towards the charge
   C. both A. and (6)
   D. none of the above

7. A positive and a negative charge are initially 50 mm apart. When they are moved close together so that they are now only 10 mm apart, the force between them will be________________?

   A. 5 times smaller than before
   B. 5 times greater than before
   C. 10 times greater than before
   D. 25 times larger than before

8. capacitor is to have an energy content of 20J it must be placed across a potential difference of________________?

   A. 4 volts
   B. 9 volts
   C. 2 volts
   D. 1 vol

9. The force per unit charge is know as__________________?

   A. electric flux
   B. electric intensity
   C. electric potential
   D. all of above are same

10. A capacitor having capacitance of 5 uF is charged to a potential difference of 10,000 V. The energy stored in the capacitor is__________?

    A. 50 joules
    B. 150 joules
    C. 200 joules
    D. 250 joules