Quick picks on magnetism

Exercise and reference answers

Questions

1. Question

   The tangent to a field line gives the:

   Choices

   1. Direction
   2. Magnitude
   3. Frequency

   Correct choice

   Direction

2. Question

   A bar magnet is equivalent to a:

   Choices

   1. Capacitor
   2. Solenoid
   3. Resistor

   Correct choice

   Solenoid

3. Question

   Net magnetic flux through a closed surface is:

   Choices

   1. Large
   2. Halved
   3. Zero

   Correct choice

   Zero

4. Question

   Magnetisation is moment per unit:

   Choices

   1. Volume
   2. Length
   3. Charge

   Correct choice

   Volume

5. Question

   The hysteresis loop plots B against:

   Choices

   1. T
   2. H
   3. V

   Correct choice

   H

Instructions

Tap the correct answer before the round moves on.

Explanation