Basic Electrical Engineering Questions and Answers
Q1.
The unit for permeability of free space is?
Answer:
Henry/m
Q2.
Magnetomotive force is equal to__________________
Answer:
current * number of turns
Q3.
The relation between the direction of current and the direction of magnetic field is?
Answer:
Perpendicular
Q4.
What is the coupling coefficient when all the flux of coil 1 links with coil 2?
Answer:
1
Q5.
What happens to the coupling coefficient when the flux linkage of coil 1 and coil 2 increases?
Answer:
Increases
Q6.
What is the SI unit of mutual inductance?
Answer:
Henry
Q7.
In an RL series circuit, when the switch is closed and the circuit is complete, what is the response?
Answer:
Decays with time
Q8.
What is the time constant of an inductive circuit?
Answer:
L/R
Q9.
As the number of turns in the coil increases, what happens to the inductance of the coil?
Answer:
Increases
Q10.
What happens to the inductance as the length of the magnetic circuit increases?
Answer:
Decreases
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