Second Year Physics Chapter 14 Online MCQ Test for 2nd Year Physics Chapter 14 Electromagnetism Preparation

If the number of turns become double but length remain same, then magnetic field in the solenoid become.

• Half A
• Double B
• Remain same C
• Zero D

For  accurate measurement of current through a circuit, the resistance of ammeter should be

• Very small A
• Very high B
• Neither small nor high C
• None of the above D

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

The acceleration of an electron of mass m and charge e, moving with uniform speed v at right angles to a magnetic field of flux density B, is given by

• 
  A
• 
  B
• 
  C
• Bevm D

Write the SI unit of magnetic flux.

• Tesla A
• Weber B
• Weber m-2 C
• Tesla m2 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 magnetic flux will be max, For an angle of:

• 0° A
• 60° B
• 90° C
• 180° D

The value of e/m is smallest for

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

When charge particle enter perpendicular to magnetic field, the path followed by it is:

• A helix A
• A circle B
• Straight line C
• Ellipes D

A sensitive galvanometer is

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

The SI Unit of magnetic induction is.

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

Galvanometer is sensitive when C/BAN is

• zero A
• Large B
• small C
• Negative D

Energy stored per uint volume inside a solenoid is called as

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

In order to measure potential difference voltmeter is always connected in.

• Series A
• Parallel B
• Both a and b C
• Neither in series nor in parallel D

In CRO, the output waveform of time base generator is

• Circular A
• Square B
• Sinusoidal C
• Saw-toothed D

If the length and number of turns of a solenoid are doubled strength of magnetic field with.

• Be doubled A
• Become half B
• Not change C
• Be four time D

Magnetic flux density is measured in

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