2. Calculate the number of electrons constituting one coulomb of charge per second through any cross section of a conductor.

 

3. How much work is done in moving a charge of 2 C across two points having a potential difference of 12 V ?

 

4. How much energy is given to each coulomb of charge passing through a 6 V battery ?

 

5. Calculate the work done in moving a charge of 5 Coulombs from a point at a potential of 210 Volts to another point at 240 Volts.

 

7. When a particle of charge 10 µC is brought from infinity to a point P, 2.0 mJ work is done by the external forces. What is the potential at   P  ?

 

9. How many electrons pass through a lamp in one minute if the current be 200 mA?

 

10. Calculate the current supplied by a cell if the amount of charge passing through the cell in 4 seconds is 12 C ?