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Electronics - Inductors

Exercise : Inductors - General Questions
16.
What is the permeability of transformer iron?
50
450
1,500
5,500
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
Electromagnetism is the:
magnetic field caused by a permanent magnet
action between a permanent and an artificial magnet
magnetic field action with a current-carrying wire
current in the coil
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
A magnetic field has:
polar fields
lines of force
magnetomotive force
lines of reluctance
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
Which two values are plotted on a B-H curve graph?
reluctance and flux density
permeability and reluctance
magnetizing force and permeability
flux density and magnetizing force
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
What is the number of turns required in the secondary winding for a transformer when 120 volts is applied to a 2400-turn primary to produce 7.5 Vac at the secondary?
75 turns
150 turns
900 turns
1920 turns
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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