Question

Boojho and Paheli performed experiments taking similar bulbs and cells but two different solutions A and B as shown in Fig.14.1.They found that the bulb in the setup A glows more brightly as compared to that of the setup B. You would conclude that

• A. higher current is flowing through the circuit in setup A.
• B. higher current is flowing through the circuit in setup B.
• C. equal current is flowing through both the circuits.
• D. the current flowing through the circuits in the two setups cannot be compared in this manner.

Answer 1

The correct option is A higher current is flowing through the circuit in setup A.

The current through the solution in the setup B could be weak and therefore unable to make the bulb glow brightly. However, the current is strong enough through the liquid in set up A for the bulb to glow brightly.
Hence, the higher current is flowing through the circuit in setup A.