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12th Class Physics
Short Questions Preparation
Start Chapter 15 Preparation
12th Class Physics Chapter Wise Preparation
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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Total Questions10
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Available Sets4
Physics - ICS Part 2 Physics Chapter 15 Short Questions Preparation
Question # 1
Can an electric motor be used to derive and electric generator with output from the generator being used to operate the motor?
- Ans 1: No,it is not possible.Because if it possible,it will be a self operating system without getting energy from some external source and this is against the law of conservation of energy.
ICS Part 2 Physics Chapter 15 Short Questions Preparation - Set 1
Question # 1
Can an electric motor be used to derive and electric generator with output from the generator being used to operate the motor?
- Ans 1: No,it is not possible.Because if it possible,it will be a self operating system without getting energy from some external source and this is against the law of conservation of energy.
ICS Part 2 Physics Chapter 15 Short Questions Preparation - Set 2
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.
ICS Part 2 Physics Chapter 15 Short Questions Preparation - Set 3
Question # 1
Name the factor upon which the self inductance depends.
- Ans 1: It depends upon induced emd and time rate of change of current in the coil.It also depend upon the number of turns of the coil,its area of cross section and the core material.
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.
