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JSCE Basic Science 2023 Objective — Question 15

Question 15 of 100 from the Junior Secondary Certificate Examination (JSCE) Basic Science 2023 Objective paper, with the correct answer and a full explanation.

In the electric circuit above, the resistance of the variable resistor was increased, deduce the size of current and brightness of the lamp.

Diagram for question 15

A. Current would increase and lamp will be brighter
B. The current will decrease and lamp will get brighter
C. The current will increase and the lamp will get dimmer
D. The current will decrease and the lamp will get dimmerCorrect

Explanation

I = V/R. More resistance means less current, so the lamp gets dimmer.

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