12th Class Fsc Physics Online Preparation

Online Short Questions For Chapter 3 "12th Class Physics Chapter 3 Short Questions Preparation "

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Physics - 12th Class Physics Chapter 3 Short Questions Preparation

Question # 1

Distinguished between sensitive and dead beat galvanometers.

  • Ans 1: A galvanometer which shows large deflection for a small value of unit current is sensitive one whereas a galvanometer in which the coil suddenly comes to rest after the current passed through it or the current is stopped from flowing through it is called dead beat out stable galvanometer.
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Prepare Complete Set Wise Questions For Chapter 3 "12th Class Physics Chapter 3 Short Questions Preparation "

12th Class Physics Chapter 3 Short Questions Preparation - Set 1

Question # 1

Distinguished between sensitive and dead beat galvanometers.

  • Ans 1: A galvanometer which shows large deflection for a small value of unit current is sensitive one whereas a galvanometer in which the coil suddenly comes to rest after the current passed through it or the current is stopped from flowing through it is called dead beat out stable galvanometer.
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12th Class Physics Chapter 3 Short Questions Preparation - Set 2

Question # 1

Write any two use of CRO.

  • Ans 1:
    1. The CRO is used for displaying the waveform of given voltage.
    2. Once the waveform is displaying,we can measured the voltage,its frequency and phase.
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12th Class Physics Chapter 3 Short Questions Preparation - Set 3

Question # 1

What is dead beat galvanometer?

  • Ans 1: The galvanometer in which the coil comes to rest quickly after current passed through it or the current is stopped from flowing through it,It is called stable or a dead beat galvanometer.
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12th Class Physics Chapter 3 Short Questions Preparation - Set 4

Question # 1

Define Tesla and write its formula.

  • Ans 1: If a magnetic field exerts a force of 1N on 1m length of the conductor placed at right angles to the magnetic field carrying a current of 1A then the strength of magnetic field is said to be one tesla.
    1 T = 1 NA-1m-1
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14th Chapter

12th Class Physics Ch 14 Preparation

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