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

The SI unit of magnetic permeability is.

• WbA-1m-1 A
• Wbm-2 B
• WbmA-1 C
• WbAm-1 D

Which one has the least resistance.

• Galvanometer A
• Ammeter B
• Ohm meter C
• Volta meter D

Energy stored per uint volume inside a solenoid is called as

• energy density A
• Electric flux B
• Work C
• Volume charge density D

e/m=

• v/Br A
• Br/V B
• VB/r C
• Vr/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

___ is correct relation.

• IT = 10^-4 G A
• IT = 10⁴ G B
• IT = 10² G C
• IT = 10 ^-2 G D

Which one of the following resistance is used to convert a Galvanometer into an ammeter.

• High resistance A
• Low resistance in series with galvanometer B
• Shunt C
• High resistance in series with galvanometer D

The SI unit of flux density is.

• NA-1 m2 A
• NA-1 m-1 B
• NAm-1 C
• NA-1 m D

The force on a charge particle moving parallel to magnetic field is:

• Maximum A
• Minimum B
• Zero C
• None of these D

Galvanometer is sensitive when C/BAN is

• zero A
• Large B
• small C
• Negative 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 sensitive galvanometer is

• Unstable A
• Stable B
• Moderate C
• Both B and C D

The value of e/m is smallest for

• Proton A
• Electron B
• Beta particle C
• Positron D

The magnetic flux will be max, For an angle of:

• 0° A
• 60° B
• 90° C
• 180° D

Magnetic flux density is measured in

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

The SI Unit of magnetic induction is.

• Weber A
• Tesla B
• Gauss C
• Newton D

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