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Needed a Test for electricity and magnetic effects of electric current?
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Needed a Test for electricity and magnetic effects of electric current...
Test for Electricity and Magnetic Effects of Electric Current


Section 1: Multiple Choice Questions (MCQs)


  • Question 1: What is the SI unit of electric current?

    • a) Volt

    • b) Ampere

    • c) Ohm

    • d) Watt




  • Question 2: Which of the following materials is a good conductor of electricity?

    • a) Wood

    • b) Rubber

    • c) Copper

    • d) Plastic




  • Question 3: What happens to the resistance of a conductor when its length is doubled?

    • a) It becomes half

    • b) It doubles

    • c) It remains the same

    • d) It becomes zero




  • Question 4: Which of the following is not a magnetic substance?

    • a) Iron

    • b) Steel

    • c) Copper

    • d) Nickel




  • Question 5: What is the direction of the magnetic field inside a current-carrying straight conductor?

    • a) Clockwise

    • b) Anti-clockwise

    • c) Towards the conductor

    • d) Away from the conductor





Section 2: Short Answer Questions


  1. Question 1: State Ohm's law and explain its significance.

  2. Question 2: What is the difference between a conductor and an insulator?

  3. Question 3: Explain how the magnetic field is produced around a current-carrying conductor.

  4. Question 4: Define the term 'electromagnet' and give an example of its application.

  5. Question 5: What is the principle of an electric generator?



Section 3: Long Answer Questions


  1. Question 1: Describe the working principle of an electric motor. Explain with the help of a labeled diagram.

  2. Question 2: Discuss the factors affecting the resistance of a conductor. How does the resistivity of a material depend on these factors?

  3. Question 3: Explain the working of a simple electric circuit consisting of a
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