The metallic spheres A and B of radii 2m and 4m respectively carry the same charge 4 x 10 8C. If the spheres are connected by a copper wire_______________?

Related Mcqs:

1. 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

2.  If P is the power of a star connected system then what will be power of an equivalent delta connected system?

   A. P
   B. 3P
   C. P/3
   D. None of the above

   Updated by: muhammad rahim

3. Three 10 kΩ resistors are connected in series. A 20 kΩ resistor is connected in parallel across one of the 10 kΩ resistors. The voltage source is 24 V. The total current in the circuit is___________?

   A. 900 μA
   B. 9 mA
   C. 90 mA
   D. 800 μA

4. 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

5. If metallic conductor is charged negatively then its weight______________?

   A. Remains same
   B. First increases then decreases
   C. Decreases then increases
   D. Increases for a while

6. A hollow metallic sphere of 8cm diameter is charged with 4 x 10 8C. The potential on its surface will be_________________?

   A. 900 volts
   B. 9000 volts
   C. 90 volts
   D. zero

7. A small coil lies inside a large coil. The two coils are horizontal concentric and carry currents in opposite directions. The large coil will experience______________?

   A. A torque about horizontal axis
   B. A torque about vertical axis
   C. An upward force along the axis
   D. No resultant force

8. An electric charge at rest produces_______________?

   A. only a magnetic field
   B. only an electric field
   C. neither electric field nor magnetic field
   D. both electric and magnetic fields

9. Electric intensity at infinite distance from the point charge is_____________?

   A. zero
   B. infinite
   C. positive
   D. negative

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

    A. in the direction of electric intensity
    B. against electric intensity
    C. in any direction
    D. in the direction of electric flux