Exercise: Transformers

Questions for: Transformers

To ensure a high coefficient of coupling, all fixed transformers are usually wound on a(n) _____________.
A:
EI core
B:
iron core
C:
common core
D:
CI core
Answer: C
No answer description is available. Let's discuss.
If the current drawn in the secondary of a transformer increases, the power in the primary should remain the same.
A:
True
B:
False
C:
D:
Answer: B
No answer description is available. Let's discuss.
For mutual inductance to occur, the two coils must be at right angles to each other.
A:
True
B:
False
C:
D:
Answer: B
No answer description is available. Let's discuss.

In the given circuit, Maximum power is being transferred to the load.

A:
True
B:
False
C:
D:
Answer: B
No answer description is available. Let's discuss.
Regardless of whether the transformer is step-up or step-down, power in the primary equals the power in the secondary if there is 100% efficiency.
A:
True
B:
False
C:
D:
Answer: A
No answer description is available. Let's discuss.
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