What does a voltmeter measure?

What is the direction of current in the following circuit?

Identify the correct circuit diagram.

A potential energy of 5 J is used to move charges across the given battery.

How many charges are being moved?

A potential energy of 5 J is required to move 10 C of charge across a battery. Potential difference of one end is given. What is the potential difference at another end?

What will be the potential energy required to move a charge of 60 C across the given potential difference?

In 10 seconds, a charge of 25 C leaves a battery, and 200 J of energy is delivered to an outside circuit. What is the potential difference across the battery?

What component is wrong in this circuit diagram?

Name the physical quantity whose SI unit is J/C.

• The SI unit of current is Ampere.
• The SI unit of charge is Coulomb.
• The SI unit of work done is Joule.

A charge of 25 C is moved from infinity to points A and B, and the work done to do so is 10 J and 11 J, respectively. Calculate the potential difference between points A and B.

To carry how much charge between two points having potential difference equal to 220 V, 1760 J of work is done?

How much potential difference is required to do 100 J of work to carry a charge of 20 C between two points?

Calculate the work done if a charge of 5 C moving across two points has a potential difference equal to 20 V.

Amount of work done by Sona in bringing a unit positive charge from one end to another end of a conductor is called ______.

A charge of 5 C flows through the copper wire for 2 s connected across a cell of potential difference 20 V, the work done is