Chapter 14 Electromagnetism Physics 12th Class Punjab MCQ Tests
12th Class Physics Chapter 14 MCQ Tests
Chapter 14 of 12th Class Physics has 40 questions. If you take an online MCQ test, the system will randomly choose the questions. If you want to take the quiz by chapter then click the start test button.
Total Questions: 40
Total Marks: 40
Time: 40 Mins
Total Questions: 40
Total Marks: 40
Time: 40 Mins
40Min : 00 Sec Remaining
Question # 1
How the unknown resistance should be connected with the meter in a multi-range ohmmeter, so that it can be measured correctly?
Question # 2
A cathode ray oscilloscope consists of which of the following components?
Question # 3
Which of the following quantities is not affected by the magnetic field?
Question # 4
A current carrying loop is placed in a uniform magnetic field. What will the loop experience?
Question # 5
Which of the following should be increased in order to increase the torque on a current carrying coil in a magnetic field?
Question # 6
Find the radius of orbit of an electron:
Question # 7
An electron moving along positive x-direction enters a magnetic field, which is directed along positive z-axis. In which direction, the electron will be deflected?
Question # 8
Solve
Question # 9
Simplify:
Question # 10
How much voltage is required?
Question # 11
Calculate the number of charge carriers in this wire.
Question # 12
Suppose we have to measure an unknown voltage with a multirange voltmeter. This particular voltmeter has several different voltage measurement ranges, i.e., 500 V, 250 V, 100 V, 50 V and 25 V. Which range will be best to begin with, when first measuring this unknown voltage with the meter?
Question # 13
In terms of the divisions on screen, what is the voltage of the waveform in cathode ray oscilloscope?
Question # 14
How should be the value of the factor c / BAN be changed, so that the galvanometer can be made sensitive?
Question # 15
The resistance of the coil of an ammeter is R. What is the resistance of shunt that is required to increase the range of ammeter n times?
Question # 16
The magnitude of magnetic filed due to a current carrying wire at a distance d is B. What will be the magnitude of the field at 2d?
Question # 17
A current is moving upward through a wire that is arranged vertically. What is the direction of magnetic field due to current in the wire?
Question # 18
Which of the following is determined by the number of electrons from grid reaching the screen in a cathode ray oscilloscope?
Question # 19
A galvanometer of internal resistance is 50Ω, and current 50 mA is converted into ammeter of range 5A. What is the required shunt resistance?
Question # 20
A current is passing through a loop of area 0.2 m2 placed in a magnetic field of 5 T such that the field makes an angle of 30 degree with the plane of the loop. Calculate the torque in the loop.
Question # 21
Calculate the force on a positive charge of amount 2 C entering perpendicular into the magnetic field of strength 3 T with a velocity of 40 ms −1.
Question # 22
Find Resistance?
Question # 23
Solve the equation:
Question # 24
A proton enters a magnetic field of 0.5 T such that the velocity of proton is parallel to the field. What will be the force on the proton?
Question # 25
A conductor of length 1.6 m is at 70° to the magnetic field of strength 1 T. A current of 6 A is flowing through the conductor. Calculate the force of magnetic field on the conductor.
Question # 26
If a high resistance is connected in series with the galvanometer, what will be the resulting instrument?
Question # 27
Calculate the magnitude of magnetic field at the ground due to a transmission line that is 8 m high and carrying a current of 150 A.
Question # 28
Calculate the magnetic field strength inside a solenoid of length 10 cm and 500 number of turns, where a 10 A direct current is flowing through the solenoid.
Question # 29
If a soft iron bar is introduced inside a current carrying solenoid, what will happen to the magnetic field inside the solenoid?
Question # 30
How can an Avometer become able to measure the alternating voltage?
Question # 31
A current carrying rectangular loop of 40 cm2 area is placed in a magnetic field such that the field is along the plane of the loop. The value of current is 10 A and magnetic field is 2 T. Calculate the magnitude of torque in the loop.
Question # 32
Calculate the force on the charge.
Question # 33
Fleming's left hand rule is used to find direction or polarity of which quantity?
Question # 34
How much speed an electron will gain when a voltage of 40 volt is applied to accelerate it?
Question # 35
Why a current carrying conductor experiences a force when placed in an external magnetic field which is at right angle to the direction of flow of electric current?
Question # 36
There is a bright spot on the screen of the cathode ray oscilloscope, which is caused by fast moving particles. What are these particles?
Question # 37
A force F acts on one side of a current carrying loop placed in a magnetic field into paper. What will be the force on the other side of the loop?
Question # 38
CRO gives the visual representation of time varying signals. Which of the following statements is true about the display of signal?
Question # 39
Find the charge on a particle that enters a magnetic field of 0.5 T with a velocity of 30 ms −1. The magnetic force on the particle is 0.8 N.
Question # 40
What is the deflecting couple when the coil of the galvanometer is in equilibrium?
Total Questions
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Question # 1
How the unknown resistance should be connected with the meter in a multi-range ohmmeter, so that it can be measured correctly?
Question # 2
A cathode ray oscilloscope consists of which of the following components?
Question # 3
Which of the following quantities is not affected by the magnetic field?
Question # 4
A current carrying loop is placed in a uniform magnetic field. What will the loop experience?
Question # 5
Which of the following should be increased in order to increase the torque on a current carrying coil in a magnetic field?
Question # 6
Find the radius of orbit of an electron:
Question # 7
An electron moving along positive x-direction enters a magnetic field, which is directed along positive z-axis. In which direction, the electron will be deflected?
Question # 8
Solve
Question # 9
Simplify:
Question # 10
How much voltage is required?
Question # 11
Calculate the number of charge carriers in this wire.
Question # 12
Suppose we have to measure an unknown voltage with a multirange voltmeter. This particular voltmeter has several different voltage measurement ranges, i.e., 500 V, 250 V, 100 V, 50 V and 25 V. Which range will be best to begin with, when first measuring this unknown voltage with the meter?
Question # 13
In terms of the divisions on screen, what is the voltage of the waveform in cathode ray oscilloscope?
Question # 14
How should be the value of the factor c / BAN be changed, so that the galvanometer can be made sensitive?
Question # 15
The resistance of the coil of an ammeter is R. What is the resistance of shunt that is required to increase the range of ammeter n times?
Question # 16
The magnitude of magnetic filed due to a current carrying wire at a distance d is B. What will be the magnitude of the field at 2d?
Question # 17
A current is moving upward through a wire that is arranged vertically. What is the direction of magnetic field due to current in the wire?
Question # 18
Which of the following is determined by the number of electrons from grid reaching the screen in a cathode ray oscilloscope?
Question # 19
A galvanometer of internal resistance is 50Ω, and current 50 mA is converted into ammeter of range 5A. What is the required shunt resistance?
Question # 20
A current is passing through a loop of area 0.2 m2 placed in a magnetic field of 5 T such that the field makes an angle of 30 degree with the plane of the loop. Calculate the torque in the loop.
Question # 21
Calculate the force on a positive charge of amount 2 C entering perpendicular into the magnetic field of strength 3 T with a velocity of 40 ms −1.
Question # 22
Find Resistance?
Question # 23
Solve the equation:
Question # 24
A proton enters a magnetic field of 0.5 T such that the velocity of proton is parallel to the field. What will be the force on the proton?
Question # 25
A conductor of length 1.6 m is at 70° to the magnetic field of strength 1 T. A current of 6 A is flowing through the conductor. Calculate the force of magnetic field on the conductor.
Question # 26
If a high resistance is connected in series with the galvanometer, what will be the resulting instrument?
Question # 27
Calculate the magnitude of magnetic field at the ground due to a transmission line that is 8 m high and carrying a current of 150 A.
Question # 28
Calculate the magnetic field strength inside a solenoid of length 10 cm and 500 number of turns, where a 10 A direct current is flowing through the solenoid.
Question # 29
If a soft iron bar is introduced inside a current carrying solenoid, what will happen to the magnetic field inside the solenoid?
Question # 30
How can an Avometer become able to measure the alternating voltage?
Question # 31
A current carrying rectangular loop of 40 cm2 area is placed in a magnetic field such that the field is along the plane of the loop. The value of current is 10 A and magnetic field is 2 T. Calculate the magnitude of torque in the loop.
Question # 32
Calculate the force on the charge.
Question # 33
Fleming's left hand rule is used to find direction or polarity of which quantity?
Question # 34
How much speed an electron will gain when a voltage of 40 volt is applied to accelerate it?
Question # 35
Why a current carrying conductor experiences a force when placed in an external magnetic field which is at right angle to the direction of flow of electric current?
Question # 36
There is a bright spot on the screen of the cathode ray oscilloscope, which is caused by fast moving particles. What are these particles?
Question # 37
A force F acts on one side of a current carrying loop placed in a magnetic field into paper. What will be the force on the other side of the loop?
Question # 38
CRO gives the visual representation of time varying signals. Which of the following statements is true about the display of signal?
Question # 39
Find the charge on a particle that enters a magnetic field of 0.5 T with a velocity of 30 ms −1. The magnetic force on the particle is 0.8 N.
Question # 40
What is the deflecting couple when the coil of the galvanometer is in equilibrium?
Total Questions
12345678910111213141516171819202122232425262728293031323334353637383940
Physics MCQ Test by Topics
- +14.1 Magnetic Field Due to Current in a Long Straight Wire
- +14.2 Force on a Current Carrying Conductor in a Uniform Magnetic Field
- +14.3 Magnetic Flux and Flux Density
- +14.4 Amperes Law and Determination of Flux Density B
- +14.4 Field Due to a Current Carrying Solenoid
- +14.5 Force on a Moving Charge in a Magnetic Field
- +14.6 Motion of Charged Particle in an Electric and Magnetic Field
- +14.7 Determination of e/m of an Electron
- +14.8 Cathode Ray Oscilloscope
- +14.8 Uses of CRO
- +14.9 Torque on a Current Carrying Coil
- +14.10 Galvanometer
- +14.10 Ammeter
- +14.10 Voltmeter
- +14.10 Ohmmeter
- +14.11 Avo Meter-Multimeter
- +14.11 Voltage Measuring Part of AVO Meter
- +14.11 Current Measuring Part of AVO Meter
- +14.11 Resistance Measuring Part of AVO Meter
- +14.11 Digital Multimeter (DMM)
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Updated on: 17-05-2026
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