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A conductor carries a steady current and 30 C of charge flows past a point in 6 seconds. What is the current?

A5 A
B0.2 A
C36 A
D180 A
Answer & Solution
Correct answer: A. 5 A
1. Current is the rate of flow of charge: $I = \dfrac{Q}{t}$. 2. Substitute $Q = 30\,\text{C}$ and $t = 6\,\text{s}$. 3. $I = \dfrac{30}{6} = 5\,\text{A}$. _Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit 4 Electricity "Electricity", p.62_
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