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

Try The Short Questions For 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

Can step up transformer increase the power level?

  • Ans 1: No,a step up transformer can not increase the power level,in actual transformer,due of dissipation of energy in the coil the output power is always less than input power,Therefore a step up transformer can't increase power level.
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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

Can step up transformer increase the power level?

  • Ans 1: No,a step up transformer can not increase the power level,in actual transformer,due of dissipation of energy in the coil the output power is always less than input power,Therefore a step up transformer can't increase power level.
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ICS Part 2 Physics Chapter 15 Short Questions Preparation - Set 2

Question # 1

A suspended magnet is oscillating freely in the horizontal plane.The oscillation are strongly damped when a metal plate is placed under,The magnet.Explain why its occurs.

  • Ans 1: The oscillating magnet produces change of magnetic flux close to it.The metal plate placed below it experiences the change the magnetic flux,As the result eddy currents are produced inside the metal.According to Lenz's law these eddy currents oppose the cause which produce it,So the oscillation of magnet are strongly damped.
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ICS Part 2 Physics Chapter 15 Short Questions Preparation - Set 3

Question # 1

Define electromagnetic induction.

  • Ans 1: When a conductor is moved through a magnetic field,the electric current flow through the circuit,The emf produced in the conductor is called induced emf,and the current generated is called induced current.This phenomena is known as electromagnetic induction.
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ICS Part 2 Physics Chapter 15 Short Questions Preparation - Set 4

Question # 1

How the power is lost due to eddy current in a transformer and how this loss can be minimized?

  • Ans 1: The induced currents that are set up in the core of transformer in the direction perpendicular to the flux are known as eddy currents,It results in power dissipation and heating of the coral material.The insulation between lamination sheets should be perfect so as to stop the flow of eddy currents.
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