Current Electricity

Subject matter experts of JagranJosh have developed chapter wise practice questions of Class 12th as per the relevancy of the chapter in the CBSE board exam. This practice set contains 10 questions with detailed explanations on “Chapter: Current Electricity” of Physics.

  • Q1.The current in the arm CD of the circuit will be

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  • Q2.The bulbs A, B and C are connected as shown in the figure given below. The bulbs B and C are identical. If the bulb C is fused then:

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  • Q3.A cylindrical wire is stretched to increase its length b 10 %. What is the percentage increase in resistance?

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  • Q4.A copper wire is stretched to make it 0.2%. What is the percentage change in its resistivity?

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  • Q5.A steel wire is stretched to make it 0.2% longer. What is the percentage change in its resistance?

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  • Q6. VI graph for a metallic wire at two different temperatures  T 1  and  T 2  is shown below. The correct  relation between  T 1  and  T 2  is:

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  • Q7.The figure given below represents a part of closed circuit. The potential difference between X and Y is

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