Unit II: Current Electricity - Online Test

Q1. What is the current out of the battery?

Answer : Option A
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Q2. The temperature coefficient of resistance of a wire is 0.00125 per °C. At 300 K, its resistance is 1 Ω. The resistance of the wire will be 2 Ω at
Answer : Option D
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Q3. The internal resistance of a 2.1 V cell which gives a current of 0.2 A through a resistance of 10 Ω is
Answer : Option B
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Q4. A piece of copper and another of germanium are cooled from room temperature to 80 K. The resistance of
Answer : Option D
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Q5. In Joule’s heating law, when I and t are constant, if the H is taken along the y axis and I2 along the x axis, the graph is
Answer : Option A
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