# Electromagnetism Mcqs

Our collections of Multiple choice questions and answers focuses on study of Electromagnetism in Physics. These questions are chosen from a collection of most authoritative and best reference books on Physics. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, MDCAT, Teaching jobs Tests and Chemical industry job interviews. One should practice our Mcqs to assimilate knowledge on Electromagnetism in Physics comprehensively.

1. Home
2. »
3. Sciences Mcqs
4. »
5. Physics
6. »
7. Electromagnetism Mcqs

F=1/B

F=1/Bsin?

F/0

F=1/Bcos?

## 2. A galvanometer basically is an instrument used to

Detect current in a circuit

Measure current flowing through a circuit

Measure voltage across a circuit

Measure potential difference between two points in a circuit

Charge in motion

Charge at rest

Both

None

## 4. A magnetic field

Always exerts a force on a charged particle

Never exerts a force on a charged particles

Exerts a force if the charged particle is moving in the direction of the magnetic field lines

Exerts a force if the charged particle is moving perpendicular to the magnetic field lines

4 volt

5 volt

2 volt

0.4 volt

## 6. A particle of mass m charge q and speed V enters a uniform magnetic radius r. The radius r of the circle is

Independent mass m

Directly proportional to m

Directly proportional to q

Directly proportional to B

2.0 mA

20 mA

200 mA

0.2 mA

## 8. A wheat stone bridge is said to be balanced when

Maximum current flows through the galvanometer branch

Minimum current flows through the galvanometer branch

Potential difference across galvanometer branch is maximum

Potential difference across galvanometer branch is zero

## 9. An ammeter measures the total current flowing through a circuit when it is connected

In series with the circuit

In parallel with circuit

In series with any of the parallel resistances in the circuit

In parallel with any of the series resistances in the circuit

E = BeV

B = eE/V

E = BV

E = BeV/2

## 11. An instrument which can measure potential without drawing any current is

Voltmeter

Galvanometer

Cathode ray oscilloscope (CRO)

Ammeter

BINA cosa

BINA sina

BINA tana

BINA

## 13. Galvanometer is a very sensitive device with

Very low damping

Very high damping

No damping at all

## 14. Heating a magnet will

Weaken it

Strengthen it

Reverse its polarity

Demagnetize it completely

## 15. If a current carrying solenoid is suspended freely it will

Be rotating

Come to rest in N-S direction

Vibrating like galvanometer needle

Comes to rest after rotation

error: You are not allowed to do so.....
0Shares
Scroll to Top