Basic Electrical Engineering Questions and Answers
Q1.
In a variable capacitor, capacitance can be varied by ______
a) Turning the rotatable plates in or out
b) Sliding the rotatable plates
c) Changing the plates
d) Changing the material of plates
Answer: a
Q2.
The simplest kind of capacitor is ________
a) Ceramic capacitor
b) Electrolyte capacitor
c) Tuning capacitor
d) Paper capacitor
Answer: d
Q3.
Capacitor preferred when there is high frequency in the circuits is _______
a) Electrolyte capacitor
b) Mica capacitor
c) Air capacitor
d) Glass capacitor
Answer: b
Q4.
The type of capacitors used in communication transmitters are?
a) Electrolyte capacitor
b) Variable capacitor
c) Air capacitor
d) Glass capacitor
Answer: b
Q5.
Which capacitors relatively costly?
a) Electrolyte capacitor
b) Mica capacitor
c) Air capacitor
d) Glass capacitor
Answer: b
Q6.
____________ capacitors usually have a colour code to find its value.
a) Electrolyte capacitor
b) Variable capacitor
c) Polyester capacitor
d) Glass capacitor
Answer: c
Q7.
______________ capacitors have a high leakage voltage.
a) Electrolyte capacitor
b) Variable capacitor
c) Air capacitor
d) Polyester capacitor
Answer: d
Q8.
If net force is zero on a particle in magnetic field what is relation between velocity and magnetic field?
Answer:
v=E/B
Q9.
Force in current carrying conductor placed in magnetic field is ___________ of il and B.
Answer:
cross product
Q10.
An E.M.F. can be induced by _________
Answer:
Change in the magnetic field, area or angle between them
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