12
QuizMultiple Choice

N/A — Exam

Question 12 • Physics in the Universe

Which factors affect the strength of a magnetic field around a current-carrying wire? Choose two correct answers.

Answer
A
the distance from the wire
B
the amount of the current
C
the direction of the current
D
the temperature of the wire
E
the type of metal of the wire

Explanation

The magnetic field around a straight current-carrying wire gets weaker as you move farther from the wire, so distance affects its strength. It also gets stronger when the amount of current increases. The current’s direction changes the field’s direction, not its strength.

AI-written and checked against the verified answer.

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