Magnetism Quiz for Fun & Quiz Competition Practice

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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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Uploaded by Bhautik Kapadiya 

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