A current in a wire increases from 2 A to 6 A.

How will the magnetic field 0.01 m from the wire change?

A) It increases to four times its original value.

B) It increases to three times its original value.

C) It decreases to one-fourth its original value.

D) It decreases to one-third its original value.

Question

Physics

Richmond

28 March, 22:16

A current in a wire increases from 2 A to 6 A.

How will the magnetic field 0.01 m from the wire change?

A) It increases to four times its original value.

B) It increases to three times its original value.

C) It decreases to one-fourth its original value.

D) It decreases to one-third its original value.

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Answers (1)

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Mitzi · Answer 1

B) It increases to three times its original value.

Given the same radius of wire and other constant property, current is directly proportional to the magnetic field.

A current in a wire increases from 2 A to 6 A.How will the magnetic field 0.01 m from the wire change?A) It increases to four times its original value.B) It increases to three times its original value.C) It decreases to one-fourth its original value.D) It decreases to one-third its original value.