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Electronics - Inductors

Exercise : Inductors - General Questions
21.
The four factors determining inductance are the number of turns, coil length, coil area, and:
permeability
reluctance
counter emf
coefficient of coupling
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
What is the inductive reactance if the Q of a coil is 60, and the winding resistance is 5 omega.gif?
0.083 omega.gif
12 omega.gif
30 omega.gif
300 omega.gif
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
The time difference, or lag, between flux density and magnetizing force is known as:
eddy current
magnetic saturation
hysteresis
coercivity
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
A magnetic circuit breaker will open to protect equipment only when:
voltage is exceeded
an open is in the equipment
the equipment is operating properly
current is exceeded
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
Electromagnetic induction is the generation of:
electricity from magnetism
electricity from electricity
magnetism from electricity
magnetism from magnetism
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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