Basic Electrical Engineering Questions and Answers
Q1.
Which, among the following, have negative susceptibility?
Answer:
Diamagnetic
Q2.
What is a permeable substance?
Answer:
Any substance through which the magnetic lines of force can pass easily
Q3.
When a bar magnet is broken into two pieces, which of the following are true?
Answer:
The magnet turns into two new bar magnets
Q4.
When inductances are connected in series, the equivalent inductance is ____________ the largest individual inductance.
Answer:
Greater than
Q5.
Can the coupling coefficient practically ever be equal to 1?
Answer:
No
Q6.
The phenomenon due to which there is an induced current in one coil due to the current in a neighbouring coil is?
Answer:
Mutual inductance
Q7.
The types of inductors are ____________
Answer:
Fixed and variable
Q8.
Initially, when the switch in a series RL circuit is closed, the inductor acts as?
Answer:
Open circuit
Q9.
What happens to the current when a ferromagnetic material is introduced within an inductor?
Answer:
Remains the same
Q10.
What happens to the inductance when the current in the coil becomes double its original value?
Answer:
Remains same
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