# Magnetism Quiz for Fun & Quiz Competition Practice

Magnetism Quiz here,

## Results

### #5. Power due to magnetic force on a charged particle is _______ .

Explanation is given below

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## Magnetism Quiz Explanations

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1. weber (Wb) is the SI unit of magnetic flux. Its CGS unit is maxwell (Mx).

1 weber = 1 tesla. 1 metre2

2. When a magnetic needle is kept in a non-uniform magnetic field, a force is applied by the magnetic field which also creates a torque on the needle.

3. As the electric and magnetic fields are parallel to each other, there will be no magnetic force certainly as there exists only magnetic force on a particle when it’s moving perpendicularly to the magnetic field. So, here only the electric field will have the only influence on the particle which will make it move in a straight line.

4. 1 tesla = 104 gauss

Hence, 1 gauss = 10-4 tesla.

5. Magnetic force is always perpendicular to the charged particle or we can say, perpendicular to the velocity of the charged particle.
We know, power = Force.Velocity

P = F.V   (Bold letters represent vector quantities)

So, the dot product of force and velocity will be zero as they are mutually perpendicular.

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## Magnetic Quiz and Magnetic quiz answers

1. Which of the following is a unit of magnetic flux?

a. gauss

b. tesla

c. lenz

d. weber ()

2. A magnetic needle is kept in a non-uniform magnetic field. It experiences

a. a force and a torque ()

b. a force but not a torque

c. a torque but not a force

d. neither a force nor a torque

3. A charged particle is released from rest in a region of steady and uniform electric and magnetic fields which are parallel to each other. The particle will move in a ________ .

a. straight line ()

b. circle

c. helix

d. cycloid

4. 1 gauss = ________tesla.

a. 10^4

b. 10^6

c. 10^-4 ()

d. 10^-6

5. Power due to magnetic force on a charged particle is _______ .

a. q(v^2)B

b. zero ()

c. qv(B^2)

d. qB