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Electronics - Inductors

Exercise : Inductors - General Questions
71.
The unit of flux density is:
magnetomotive force
a weber
a maxwell
a tesla
Answer: Option
Explanation:
tesla or weber/m2 is the unit of flux density
72.
When used as a filter, an inductor is
placed in series with the load and aids any current changes
placed in parallel with the load and aids any current changes
placed in parallel with the load and opposes any current changes
placed in series with the load and opposes any current changes
Answer: Option
Explanation:
No answer description is available. Let's discuss.
73.
A loaded transformer will achieve mutual induction when:
secondary current increase causes a primary current decrease
primary current is increased by an increase in secondary current
primary current is decreased by an increase in secondary current
secondary current decrease causes a primary current increase
Answer: Option
Explanation:
No answer description is available. Let's discuss.
74.
Which transformer turns ratio is needed to match two 16-ohm parallel devices to an output of 22.2 ohms?
1.38:1
1.67:1
0.72:1
0.60:1
Answer: Option
Explanation:
No answer description is available. Let's discuss.
75.
A transformer will have:
primary and secondary windings
primary and secondary current
primary wattage producing secondary current
different frequencies for the primary and secondary
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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