ICS Part 2 Physics Chapter 15 Short Questions Preparation


12th Class Physics
Short Questions Preparation

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12th Class Physics Chapter Wise Preparation

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

Differentiate between motor and generator.

  • Ans 1: Motor: A motor is a device which converts electrical energy into mechanical energy.
  • Ans 2: Generator: A generator is a device which convert mechanical energy into electrical energy.
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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

Differentiate between motor and generator.

  • Ans 1: Motor: A motor is a device which converts electrical energy into mechanical energy.
  • Ans 2: Generator: A generator is a device which convert mechanical energy into electrical energy.
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ICS Part 2 Physics Chapter 15 Short Questions Preparation - Set 2

Question # 1

Define motional emf and write its formula.

  • Ans 1: If a conductor moves through a magnetic field then due to change in magnet flux,an emf is induced across the ends of the conductor which is known as motional emf.
    e=vBL sin theta.
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ICS Part 2 Physics Chapter 15 Short Questions Preparation - Set 3

Question # 1

Distinguished between AC generator and transformer.

  • Ans 1: AC generator: AC generator is a device which produce AC voltage by converting mechanical energy into electrical energy.
  • Ans 2: Transformer: It is and electrical device which acts to change a given alternating emf into larger or smallar AC voltage.
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ICS Part 2 Physics Chapter 15 Short Questions Preparation - Set 4

Question # 1

What is back emf in motors?

  • Ans 1: When to coil motor rotates across the magnetic field by the applied potential difference V,an emf is induced in it.The induced emf is in such a direction that opposes the emf running motor.Due to this reasons,the induced emf is called back emf of the motor.The magnitude of the back emf increase with the speed of motor.
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Physics
15th Chapter

ICS Part 2 Physics Chapter 15 Short Questions Preparation

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