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Electricity: Magnetic and Heating Effects — Practice

15 questions 15 min Recall + understand

  1. Q1. When electric current flows through a conductor like a wire, it produces a magnetic field around it. This phenomenon is known as the

  2. Q2. A current-carrying coil that behaves like a magnet is called

  3. Q3. For practical applications, most electromagnets are made stronger by inserting

  4. Q4. Just like a bar magnet, an electromagnet also has

  5. Q5. Generation of heat in conductors due to the flow of electric current is known as

  6. Q6. When electric current is passed through a nichrome wire for some time, the wire

  7. Q7. Which of the following household appliances works on the heating effect of electric current?

  8. Q8. In electrical heating appliances like a room heater or kettle, the rod or coil of wire that produces heat is called the

  9. Q9. A Voltaic cell is also known as a

  10. Q10. In a Voltaic cell, the liquid in which the two electrodes are dipped is called the

  11. Q11. In a dry cell, the zinc container acts as the

  12. Q12. In a dry cell, the central rod covered by a metal cap is made of

  13. Q13. Rechargeable batteries are different from dry cells because rechargeable batteries

  14. Q14. According to the chapter, which type of rechargeable battery is the most common today, found in almost all devices that use batteries?

  15. Q15. The discovery that electricity and magnetism are linked was made by Hans Christian Oersted in the year

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