Question

Fill in the blank.
For the magnetic field created around a current carrying wire in an electromagnet, the _________ the current, the _______ the magnetic field.

A: larger, weaker.
B: Larger, stronger.
C: smaller, stronger.

Answer 1

An electromagnet is created by wrapping a wire conducter around a metal core and sending a current through it. If the number of turns in the conducting wire are decreased and the current is kept the same, how does that affect the magnetic strength?

A: Decreases the magnetic strength
B: Increases the magnetic strength
C: it has no affect and the magnetic strength remains the same.

Answer 2

B: Larger, stronger.

Answer 3

A: Decreases the magnetic strength.