Online Preparation of Physics Chapter 15 For 12th Class Fsc

Online Short Questions For Chapter 4 "12th Class Physics Chapter 4 Short Questions Preparation "

Try The Short Questions For 12th Class Physics Chapter 4 Short Questions Preparation

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Physics - 12th Class Physics Chapter 4 Short Questions Preparation

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.
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Prepare Complete Set Wise Questions For Chapter 4 "12th Class Physics Chapter 4 Short Questions Preparation "

12th Class Physics Chapter 4 Short Questions Preparation - Set 1

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.
Submit

12th Class Physics Chapter 4 Short Questions Preparation - Set 2

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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12th Class Physics Chapter 4 Short Questions Preparation - Set 3

Question # 1

Name four methods to produce induce emf.

  • Ans 1: An induce emf is produced in the loop if the magnetic flux through it changes.The methods to produce induced emf are:
    1. A bar magnet is moved towards the coil.
    2. By changing the area of the coil in a constant magnetic field.
    3. A coil of constant area is rotated in a constant magnetic field,
    4. The coil is placed in the magnetic field of an electromagnet.

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12th Class Physics Chapter 4 Short Questions Preparation - Set 4

Question # 1

State the Lenz's law and define Henry.

  • Ans 1: Lenz's Law: It states that the direction of induced current is always so as to opposite the change which cause the current.
    Henry: If the current in the primary is changing at the rate of one ampere per second and the emf induced across the ends of the secondary coil is one volt then the mutual inductance is called one henry.
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Physics
15th Chapter

12th Class Physics Ch 15 Preparation

Here you can prepare 12th Class Physics Chapter 15 (Electromagnetic induction test). Click the button for 100% free full practice .

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