What is the magneto-motive force (mmf) of a wire with 8 turns carrying three amperes of current? - Magnetism and Electromagnetism

Electrical and Electronic Engineering (EEE) : Magnetism and Electromagnetism - Quiz(MCQ)

What is the magneto-motive force (mmf) of a wire with 8 turns carrying three amperes of current?

A)

2.4 At

B)

24 At

C)

240 At

D)

2,400 At

Correct Answer : Option (B) : 24 At

Recently Updated in Magnetism and Electromagnetism Questions

The two conductors of a transmission line carry equal current I in opposite directions. The force on each conductor is

A)

proportional to X

B)

proportional to 7

C)

inversely proportional to I

D)

proportional to distance between the conductors

Correct Answer : proportional to X

Which of the following is a ferromagnetic material?

A)

Copper

B)

Nickel

C)

Tungsten

D)

Aluminium

Correct Answer : Nickel

A conductor of length L has current I passing through it, when it is placed parallel to a magnetic field. The force experienced by the conductor will be

A)

Zero

B)

BLI

C)

B²LI

D)

BLI²

Correct Answer : Zero

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