Currents make fields

Exercise and reference answers

Questions

1. Statement is true

   Yes

   Statement

   A steady current produces a magnetic field.

2. Statement is true

   Yes

   Statement

   Biot-Savart relates a current element to the field it makes.

3. Statement is true

   Yes

   Statement

   A circular coil has a field along its axis.

4. Statement is true

   No

   Statement

   Only permanent magnets can make a magnetic field.

Instructions

Tap True or False for each statement.

Explanation