Electronic Devices Test

Result

Electronic Devices Test - 2

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Weekly Quiz Competition

Question 1
1 / -0

Transformer is based on the principle of _______________.

A
Self-inductance

B
Mutual inductance

C
Displacement current

D
None of the above

Solution

The main principle of operation of a transformer is mutual inductance between two circuits which is linked by a common magnetic flux. A basic transformer consists of two coils that are electrically separate and inductive, but are magnetically linked through a path of reluctance.
Question 2
1 / -0

What is not possible in a transformer?

A
Eddy current

B
Direct current

C
Alternating current

D
Induced current

Solution

The transformer is used to convert the value of AC voltage. It works on the principle of electromagnetic induction. So, direct current is not possible in it.