Introduction to Charge

Q. Which of the following is the advantage of an accumulator over a dry cell?

1. An accumulator is cheap.
2. An accumulator is rechargeable.
3. An accumulator is portable.
4. An accumulator is leak proof.

Q. Consider the given circuit in which three bulbs A, B and C are connected in series. Which bulbs will glow when the tip of the safety-pin (acting as the switch) touches the end Y?

1. A and C
2. A, B and C
3. A and B
4. B and C

Q.

Name the energy that flows in an electric circuit.

Q.

Fill in the blank.

____________ are also known as accumulators.

Q. Which of the following is the most efficient light source?

1. Option A
2. Option B
3. Option C
4. Option D