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Electronics - Inductors

Exercise : Inductors - General Questions
56.
When the transformer secondary is not loaded:
secondary voltage increases
no secondary current flows
no secondary voltage is present
secondary current increases
Answer: Option
Explanation:
No answer description is available. Let's discuss.
57.
What is the current rise after 2 time constants if Vs = 12 V dc, R = 60 omega.gif, and the inductor is rated at 24 mH?
79.9 mA
126.4 mA
173.0 mA
198.6 mA
Answer: Option
Explanation:
No answer description is available. Let's discuss.
58.
What is the total inductance of a 5 H and a 100 mH coil connected in parallel?
4.76 mH
33.3 mH
98.0 mH
150.0 mH
Answer: Option
Explanation:
No answer description is available. Let's discuss.
59.
A transformer is used:
to couple electric energy from one dc circuit to another
to couple electric energy from an ac circuit to a dc circuit
to couple electric energy from a dc circuit to an ac circuit
to couple electric energy from one ac circuit to another
Answer: Option
Explanation:
No answer description is available. Let's discuss.
60.
Which of the following is NOT one of the three major types of fixed inductor?
air core
ferrite core
magnesium core
iron core
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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