ICS Part 2 Physics Chapter 15 Short Questions Preparation


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Short Questions Preparation

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Physics - ICS Part 2 Physics Chapter 15 Short Questions Preparation

Question # 1

Define self induction and mutual induction.

  • Ans 1: The phenomena in which changing current in a coil induced a emf in itself is called self-induction.
    The phenomena in which changing current in one coil induces an emf in another coil is called mutual induction.
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ICS Part 2 Physics Chapter 15 Short Questions Preparation - Set 1

Question # 1

Define self induction and mutual induction.

  • Ans 1: The phenomena in which changing current in a coil induced a emf in itself is called self-induction.
    The phenomena in which changing current in one coil induces an emf in another coil is called mutual induction.
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ICS Part 2 Physics Chapter 15 Short Questions Preparation - Set 2

Question # 1

Does the induced current depend on the resistance of the circuit?

  • Ans 1: Yes the induced current depend upon the resistance of the circuit.
    By ohm's law
    I=e/R
    Thus the induced current depends on the resistance of the circuit.
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ICS Part 2 Physics Chapter 15 Short Questions Preparation - Set 3

Question # 1

Why is split ring is used in DC generators in place of slips rings?

  • Ans 1: The split rings are two halves of a ring that acts as commutator.When the current in the coil is zero and is about to change direction,the split ring also changes the contacts with the carbon brushes,Therefore the output remains the same direction although the current is not constantan magnitude.
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ICS Part 2 Physics Chapter 15 Short Questions Preparation - Set 4

Question # 1

State Faraday's law of electromagnetic induction.

  • Ans 1: It states that
    "The average emf induced in a conducting coil of N loops is equal to the negative of the rate at which the magnetic flux through the coil is changing with time".
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ICS Part 2 Physics Chapter 15 Short Questions Preparation