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MCQ Questions for class 7 Science Electric Current and its Effects

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Below is the Quiz for class 7 Science chapter Electric Current and its Effects. You can Tap on the Start Quiz to begin playing the MCQs.

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Total Questions: 10

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Q1. Combination of two or more cell is called _____

  1. Battery
  2. Cell
  3. Energy
  4. None
Answer: Battery

Q2. A ____ circuit cannot pass electricity.

  1. Closed
  2. Open
  3. Good
  4. None of the above
Answer: Open

Q3. Which of the following controls the flow of electricity?

  1. Bulb
  2. Battery
  3. Switch
  4. All of the above
Answer: Switch

Q4. Which of the following uses the heating effect of electric current?

  1. Washing machine
  2. Room heater
  3. TV
  4. Refrigerator
Answer: Room heater

Q5. What is the use of electric fuse?

  1. It protects from the high voltage
  2. It works as a heater
  3. It protect from the high electricity bill
  4. All of the above
Answer: It protects from the high voltage

Q6. Which device uses the magnetic effect of electric current?

  1. Room heater
  2. Refrigerator
  3. Water heater
  4. Electric bell
Answer: Electric bell

Q7. What is an electric current?

  1. The flow of electron
  2. The flow of air
  3. The flow of water
  4. None of the above
Answer: The flow of electron

Q8. What is the full form of MCB?

  1. Miniature circuit breakers
  2. Memory circuit bond
  3. Miniature circle breaker
  4. Main circuit breaker
Answer: Miniature circuit breakers

Q9. When does the electric current act as a magnet?

  1. When it is heated
  2. When it is passed from a coiled wire
  3. When it transfer its energy
  4. All of the above
Answer: When it is passed from a coiled wire

Q10. An electric bell works on ____ principle

  1. Heating effect of electric current
  2. Magnetic effect of electric current
  3. Beating effect of electric current
  4. All of the above
Answer: Magnetic effect of electric current