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For a circuit at resonance, voltage appl...

For a circuit at resonance, voltage applied is `E = E_@` sin wt and current is `I = I_@` sin wt, then power consumption in the circuit is :

A

`(E_@1_@)/2`

B

`(E_@1_@)/sqrt2`

C

`sqrt2E_@I_@`

D

0

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PUNJAB BOARD PREVIOUS YEAR PAPERS-ALTERNATING CURRENTS-EXERSICE
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  2. For a circuit at resonance, voltage applied is E = E@ sin wt and curre...

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  3. For a circuit at resonance, voltage applied is E = E@ sin wt and curre...

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  4. Define resonant frequency of LCR series circuit.

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  10. Define root mean square value of an alternating current.

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  12. Derive the relation for mean or average value of alternating current.

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  16. Derive the expression for the impedance of an a.c. circuit with an ind...

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  17. Define root mean square value of an alternating current.

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  19. Define root mean square value of an alternating current.

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