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

How can you explain the waveform of various voltage formed in CRO?

  • Ans 1: We can easily find the instantaneous value and peak value of the voltage with the help of calibration of y axis in volts.the time period can also be determined by using the time calibration of x axis information about the phase difference between two voltage can be obtained by simultaneously their waveforms.
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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

How can you explain the waveform of various voltage formed in CRO?

  • Ans 1: We can easily find the instantaneous value and peak value of the voltage with the help of calibration of y axis in volts.the time period can also be determined by using the time calibration of x axis information about the phase difference between two voltage can be obtained by simultaneously their waveforms.
Submit

12th Class Physics Chapter 3 Short Questions Preparation - Set 2

Question # 1

How can a current loop be used to determine the pressure of a magnetic field in a given region of space?

  • Ans 1: The torque is experienced by a current carrying loop when placed in magnetic field is t=NIBA cos alpha.
    If the loop is deflected in a given region,then it confirms the presence of magnetic field otherwise not.
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12th Class Physics Chapter 3 Short Questions Preparation - Set 3

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

Question # 1

Define magnetic flux and solenoid.

  • Ans 1: The number of magnetic field lines passing through certain elements of area is known as magnetic flux through that surface.
    A solenoid is a long tightly wound,cylindrical coil of wire,when current passes through such a coil ,it behaves like a bar magnet.
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14th Chapter

12th Class Physics Ch 14 Preparation

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