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Online Short Questions For Chapter 4 "ICS Part 2 Physics Chapter 15 Short Questions Preparation "

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Physics - ICS Part 2 Physics Chapter 15 Short Questions Preparation

Question # 1

If area of the loop and magnetic field both are changing and still have no induced emf.Explain why?

  • Ans 1: If the plane of the loop is kept parallel to the direction of the magnetic field,magnetic field through the coil will be zero,no emf will be induced in the loop either by changing its are or by changing the magentic field.
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Prepare Complete Set Wise Questions For Chapter 4 "ICS Part 2 Physics Chapter 15 Short Questions Preparation "

ICS Part 2 Physics Chapter 15 Short Questions Preparation - Set 1

Question # 1

If area of the loop and magnetic field both are changing and still have no induced emf.Explain why?

  • Ans 1: If the plane of the loop is kept parallel to the direction of the magnetic field,magnetic field through the coil will be zero,no emf will be induced in the loop either by changing its are or by changing the magentic field.
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ICS Part 2 Physics Chapter 15 Short Questions Preparation - Set 2

Question # 1

In a transformer there is no transfer of charge from the primary to the secondary.How is then the power transferred?

  • Ans 1: The power will be transferred because the two coils of transformer are magnetically linked i.e, the change of flux through one coil is linked with the other coil.
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ICS Part 2 Physics Chapter 15 Short Questions Preparation - Set 3

Question # 1

In a transformer there is no transfer of charge from the primary to the secondary.How is then the power transferred?

  • Ans 1: The power will be transferred because the two coils of transformer are magnetically linked i.e, the change of flux through one coil is linked with the other coil.
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ICS Part 2 Physics Chapter 15 Short Questions Preparation - Set 4

Question # 1

What is meant by back emf?Write its SI units.

  • Ans 1: The emf induced across the ends of a coil due to the changing current in the same coil is called self induced emf or back emf.Its SI unit is Volt(V).
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