2nd Year Physics Chapter 14 Online MCQ Test for 12th Class Physics Chapter 14 (Electromagnetism)

The unit of Magnetic flux is called.

• weber A
• weber/m² B
• NM^-1A^-1 C
• None of above D

A dot represents the direction of magnetic field.

• Out of page A
• Into the page B
• Tangent to page C
• Parallels to page D

A photon while passing thorugh a magnetic field are deflected towards:

• North pole A
• South pole B
• Are ionized C
• None of these D

The unit of permiability of free space is:

• T.m/A A
• T.m²/A B
• T.m/A² C
• None of these D

The Grid 'G' in cathode ray oscilloscope.

• Accelerate as well as focus electron beam A
• Control no. of electrons beam B
• Is at - Ve potential with respect to cathode. C
• Both d and b  D

A positive charge is moving towards an observer, The direction of magnetic induction will be.

• Toward right A
• Anti clockwise B
• Clockwise C
• Toward left D

Magnetism is related to:

• Stationary charges A
• Moving charges B
• Stationary & Movingcharges C
• Law of motion D

Magnetic flux density is measured in

• Weber A
• Weber/m2 B
• Tesla -m C
• Gauss D

The SI unit of magnetic induction Tesla is equal to

• N-1 Am A
• NA m2 B
• NA-1n2 C
• NA-1m-1 D

The sensitivity of galvanometer directly depends upon

• Magnetic field A
• Area of coil B
• Both a and b C
• None of a, b, c D

A charged particle having charge 'q' is moving at right angle to magnetic field. The quantity which varies is.

• Speed A
• Kinetic energy B
• Path of motion C
• angular velocity D

The SI unit of E is NC-1 and that of B is Na-1 m-1 then the unit of E/B is.

• ms-2 A
• ms B
• ms^-1 C
• m-1s-1 D

• 
  A
• 
  B
• 
  C
• None of the above D

The torque in the coil can be increased by increasing:

• No. of turns A
• Current and magnetic field B
• Area of coil C
• All of the above D

The unit of magnetic induction is:

• Tesla  A
• Weber B
• Weber metre C
• NAm^-1 D

In order to increase sensitivity of galvanometer the value of C may be

• Increase A
• Decrease B
• Neither increase nor decrease C
• Remain same D

The effective way to increase the sensitivity of moving coil galvanometer is.

• Increase the area of coil A
• Increase the number of turn B
• Increase the magnetic field C
• Increase the value of constant C D