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An L-C-R series circuit , connected to a...

An L-C-R series circuit , connected to a source E, is at resonance. Then,

A

the voltage across R is zero

B

the voltage across R equals applied voltage

C

the volatage across C is zero

D

the voltage across C equals applied voltage

Text Solution

Verified by Experts

The correct Answer is:
B
Equation of voltage , E = `sqrt `
At resonance (series circuit)
`underset(L)(V)` = `underset(C )(V)` `implies` E = `underset(R )(V)`
i.e., whole applied voltage appeared across
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