STANDARD Physics Charge and Current MCQ Question
The plot represents the flow of current through a wire for different time intervals. The ratio of charges flowing through the wire corresponding to these time intervals is (see figure):
2 : 1 : 2
1 : 3 : 3
1 : 1 : 1
2 : 3 : 4
Correct Answer
Detailed Explanation
The charge flowing through the wire equals the area under the curve of the I-t graph. For each interval, the area is calculated as follows: (1) 1 × 2 = 2, (2) 2 × 1 = 2, and (3) 0.5 × 2 × 2 = 2. Therefore, the ratio of charges is 1:1:1.
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