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

EEE MCQ's

Capacitors
RC Circuits
RL Circuits
Transformers
Inductors
Passive Filters
Quantities and Units
Ohm's Law
Energy and Power
Series Circuits
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