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

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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Prepare Complete Set Wise Questions For Chapter 4 "ICS Part 2 Physics Chapter 15 Short Questions Preparation "

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Set 2

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Set 3

10 Questions
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Set 4

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ICS Part 2 Physics Chapter 15 Short Questions Preparation - Set 1

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.

Submit

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

Question # 1

In a transformer there is no transfer of charge from the primary to the secondary.How is then the power transferred?

Ans 1: The power will be transferred because the two coils of transformer are magnetically linked i.e, the change of flux through one coil is linked with the other coil.

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

Question # 1

How does Lenz's law explain law of conservation of energy phenomena of electromagnetism induction?

Ans 1: When a rod is moving in the magnetic field towards right,an induced current flows through the loop in anticlockwise direction,Since current carrying rod experience a magnetic force opposite to that velociety.An external force equal in magnitude and opposite in direction must be applied to keep the rod moving with constant velocity.This dragging force provides the energy for the induced current to flow,This energy is the source of induced current.Thus electromagnetic induction is exactly according to law of conservation of energy.

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ICS Part 2 Physics Chapter 15 Short Questions Preparation - Set 4

Question # 1

How can the power losses be minimized in a transformer?

Ans 1: The power can be minimized in transformer by implementing following considerations.
1. Core should be assembled from the laminated sheet of a material whose hysteresis loop are is very small.
2. The insulation between lamination sheets should be perfect so as to stop the flow of eddy current.
3. The resistance of the primary and secondary coils should be kept minimum.

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ICS Part 2 Physics Chapter 15 Short Questions Preparation

12th Class PhysicsShort Questions Preparation

12th Class Physics Chapter Wise Preparation

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

Physics - ICS Part 2 Physics Chapter 15 Short Questions Preparation

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

What is meant by back emf?Write its SI units.

What is back motor effect in generators?

If area of the loop and magnetic field both are changing and still have no induced emf.Explain why?

Name the factor upon which the self inductance depends.

State Faraday's law of electromagnetic induction.

What is DC motor?Write its principle.

Why is split ring is used in DC generators in place of slips rings?

What is D.C motor?Write down part of D.C motor.

Can a transformer be used with D.C? Explain

Prepare Complete Set Wise Questions For Chapter 4 "ICS Part 2 Physics Chapter 15 Short Questions Preparation "

Set 1

Set 2

Set 3

Set 4

ICS Part 2 Physics Chapter 15 Short Questions Preparation - Set 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?

What is meant by back emf?Write its SI units.

What is back motor effect in generators?

If area of the loop and magnetic field both are changing and still have no induced emf.Explain why?

Name the factor upon which the self inductance depends.

State Faraday's law of electromagnetic induction.

What is DC motor?Write its principle.

Why is split ring is used in DC generators in place of slips rings?

What is D.C motor?Write down part of D.C motor.

Can a transformer be used with D.C? Explain

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

In a transformer there is no transfer of charge from the primary to the secondary.How is then the power transferred?

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

What is DC motor?Write its principle.

What is back emf in motors?

Can DC motor be turned into DC generator?What changes are required to be done?

What changes are required to turn the D.C motors into a D.C generators?

Does the induced emf always act to decrease the magnetic flux through a circuit?

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.

Define induced emf and induced current.

What is the working principle of transformer?Explain

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

How does Lenz's law explain law of conservation of energy phenomena of electromagnetism induction?

Does the induced emf always act to decrease the magnetic flux through a circuit?

Write down any one method used for the production of induced emf.

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.

Name four methods to produce induce emf.

What is the working principle of transformer?Explain

What is DC motor?Write its principle.

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.

When the primary of a transformer is connected to AC mains the current in it increase when secondary circuit is closed.Explain why?

Does the induced current depend on the resistance of the circuit?

ICS Part 2 Physics Chapter 15 Short Questions Preparation - Set 4

How can the power losses be minimized in a transformer?

Can an electron at rest be set in motion with magnet?Explain

Can DC motor be turned into DC generator?What changes are required to be done?

Define induced emf and induced current.

When the primary of a transformer is connected to AC mains the current in it increase when secondary circuit is closed.Explain why?

Distinguished between AC generator and transformer.

Name four methods to produce induce emf.

What changes are required to turn the D.C motor into D.C generators?

What is back emf in motors?

What is the working principle of transformer?Explain

ICS Part 2 Physics Chapter 15 Short Questions Preparation

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