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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
A glass rod of "L"Length is moving perpendicular to the applied magnetic field P with velociety v.Explain briefly about the induced emf in it.
- Ans 1: Induced emf is zero.As glass rod is insulator and there are no free electrons to be shifted from one extreme to the other.Therefore there will be no effect of perpendicular magnetic field.The induced emf is only produced by moving a conductor across the magnetic field.
ICS Part 2 Physics Chapter 15 Short Questions Preparation - Set 3
Question # 1
Define self induction and also write its SI units.
- Ans 1: The phenomena in which the changing current in a coil induce an emf in itself is called the self-induction.Its SI unit is VsA-1.It is also called as henry(H).
ICS Part 2 Physics Chapter 15 Short Questions Preparation - Set 4
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.
