MHT CET · Physics · Alternating Current
A coil has inductance 2H. The ratio of its reactance, when it is connected first to an AC source and then to DC source, is
- A Zero
- B 1
- C Less than 1
- D Infinity
Answer & Solution
Correct Answer
(D) Infinity
Step-by-step Solution
Detailed explanation
Given, inductance of coil, L = 2H
Reactance of coil, when it is connected to AC source,
where, angular frequency
For DC source, inductor coil behaves pure conductor, hence
(at infinity)
Reactance of coil, when it is connected to AC source,
where, angular frequency
For DC source, inductor coil behaves pure conductor, hence
(at infinity)
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