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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
Define mutual induction.
- Ans 1: The phenomena in which the changing current in one coil induces an emd in another coil is called the mutual induction.
ICS Part 2 Physics Chapter 15 Short Questions Preparation - Set 1
Question # 1
Define mutual induction.
- Ans 1: The phenomena in which the changing current in one coil induces an emd in another coil is called the mutual induction.
ICS Part 2 Physics Chapter 15 Short Questions Preparation - Set 2
Question # 1
How can the power losses be minimized in a transformer?
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Ans 1: The power can be minimized in transformer by implementing following considerations.
- Core should be assembled from the laminated sheet of a material whose hysteresis loop are is very small.
- The insulation between lamination sheets should be perfect so as to stop the flow of eddy current.
- The resistance of the primary and secondary coils should be kept minimum.
ICS Part 2 Physics Chapter 15 Short Questions Preparation - Set 3
Question # 1
Write down any one method used for the production of induced emf.
- Ans 1: Induced emf can be induced by electromagnetic induction.When a conductor is moved through a magnetic field the electric current flow through the circuit,The emf produced in the conductor is called induced emf and the current generated is called induced current.
ICS Part 2 Physics Chapter 15 Short Questions Preparation - Set 4
Question # 1
What is back motor effect in generators?
- Ans 1: Back motor effect is the opposing torque produced due to the induced emf in the coil.When coil rotated a current is drawn through the coil.The magnetic field exerts two equal and opposite forces on left and right side of the current carrying coil,These forces are such that they produce a counter torque that oppose the rotational motion of the coil.This effect is known as back motor effect in generators.
