EASY
10th CBSE
IMPORTANT
Earn 100

Explain how we get a continuous flow of current in a metal wire connected to a cell.

Important Questions on Electricity

MEDIUM
10th CBSE
IMPORTANT
An electric device is connected to a mains supply of 110 V causing a current of 4 A through the device. Calculate the charge flowing through the circuit per second.
MEDIUM
10th CBSE
IMPORTANT
An electric device is connected to a mains supply of 110 V causing a current of 4 A through the device. Calculate the number of electrons passing through the circuit per second.
HARD
10th CBSE
IMPORTANT
An electric device is connected to a mains supply of 110 V causing a current of 4 A through the device. Calculate the amount of energy transferred to the device per second.
EASY
10th CBSE
IMPORTANT
What is meant by electric potential? State its unit.
EASY
10th CBSE
IMPORTANT
What is meant by saying that the potential at a point is 1 V?
MEDIUM
10th CBSE
IMPORTANT
If a charge of 10 millicoulombs is moved from infinity to a point at which the electric potential is 12 V, how much work is done in the process?
MEDIUM
10th CBSE
IMPORTANT
Calculate the work done in bringing a particle with a charge of 2.5 coulombs from a point at a potential of 60 V to a point at a potential of 120 V.
MEDIUM
10th CBSE
IMPORTANT
Which instrument do we use to measure the potential difference between two points in an electric circuit? Does it have a very high or very low resistance? Give a reason for your answer.