Work done by a magnetic force

Exercise and reference answers

Questions

1. Statement is true

   Yes

   Statement

   The magnetic force q(v cross B) is normal to v.

2. Statement is true

   Yes

   Statement

   The work done by the magnetic force is zero.

3. Statement is true

   No

   Statement

   A magnetic force can change a particle's speed.

4. Statement is true

   Yes

   Statement

   The Lorentz force includes both electric and magnetic parts.

Instructions

Tap True or False for each statement.

Explanation