ICS Part 2 Physics Chapter 15 Short Questions Preparation


12th Class Physics
Short Questions Preparation

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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

When the primary of a transformer is connected to A.C mains,the current it is very small if the secondary circuit is open.Explain.

  • Ans 1: If the secondary circuit is open then output power will be zero,Because output power is always slightly smaller than the input power,therefore a very small value of current is being drawn by a primary coil of transformer from AC units,
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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

When the primary of a transformer is connected to A.C mains,the current it is very small if the secondary circuit is open.Explain.

  • Ans 1: If the secondary circuit is open then output power will be zero,Because output power is always slightly smaller than the input power,therefore a very small value of current is being drawn by a primary coil of transformer from AC units,
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ICS Part 2 Physics Chapter 15 Short Questions Preparation - Set 2

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.
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ICS Part 2 Physics Chapter 15 Short Questions Preparation - Set 3

Question # 1

In a certain region the earth's magnetic field points vertically down,When a plane flies due north,which wing tip is positively charged?

  • Ans 1: When the plane flies due north in the earth magnetic field directed vertical downward,then electron will experience force in east direction,Thus west wingtip of the plane is positively charged.
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ICS Part 2 Physics Chapter 15 Short Questions Preparation - Set 4

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.
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ICS Part 2 Physics Chapter 15 Short Questions Preparation

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