Question

In which of the following circuits A, B and C given in the figure, the cell will be used up very rapidly?

• A.
• B.
• C.

Answer 1

The correct option is C

The explanation of the correct answer.

In the case of option C:

1. Because there are two bulbs, they consume electricity at a considerably higher rate than in figures (B) and (A)
2. Resulting in a higher rate of cell consumption and, as a result, the cell will be depleted.

The explanation of the incorrect answer.

In the case of option A:

1. The circuit is complete in figure (A), but it only connects the negative and positive terminals of the cell.
2. The cell is the source of electricity, but we are not consuming electricity in this scenario.
3. Instead, the current is flowing through the circuit without being used.

In the case of option B:

1. There is a bulb in figure (B), and the circuit is complete, therefore the bulb will glow and utilize the electricity, and the cell will be depleted.
2. But as compared to figure(C), the cell will not be used up very rapidly.

Hence, option C is correct.