Basic Electrical Engineering Questions and Answers
Q1.
Direction of induced emf is determined by __________
Answer:
Fleming’s right hand rule
Q2.
“The direction of an induced e.m.f. is always such that it tends to set up a current opposing the motion or the change of flux responsible for inducing that e.m.f.”, this is the statement for?
Answer:
Lenz’s law
Q3.
The relation between the direction of magnetic flux and the direction of motion of the conductor is _______
Answer:
Perpendicular
Q4.
The B/H characteristics can be determined using ______
Answer:
Fluxmeter
Q5.
The ballistic galvanometer is usually lightly damped so that ________
Answer:
Amplitude of the first swing is very large
Q6.
Ohm’s law for magnetic circuits is _________
Answer:
F=ϕS
Q7.
Reciprocal of reluctance is __________
Answer:
Permeance
Q8.
Unit of reluctance is?
Answer:
A/Wb
Q9.
A substance whose relative permeability is less than the permeability of free space is?
Answer:
Diamagnetic
Q10.
As the temperature increases beyond the Curie temperature, the relative susceptibility of ferromagnetic materials?
Answer:
Decreases
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