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What is the impedance of a circuit ?...

What is the impedance of a circuit ?

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    PUNJAB BOARD PREVIOUS YEAR PAPERS|Exercise Exercise|132 Videos

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An alternating source of e.m.f is applied to an inductor and resistor in series Investigate the phase relationship between current and e.m.f. what is the impedance of the circuit?

What is impedance of circuit at resonance ?

Figure shows a series LCR circuit connected to a variable frequency 230 V source. L = 5.0 H, C = 80 muF , R= 40 Omega . Obtain the impedance of the circuit and the amplitude of current at the resonating frequency. :

A 60muF capacitor, a 0.3H inductor and a 50Omega resistor are connected in series with a 120V-60Hz a.c. source. Calculate the impedance of the circuit and current flowing in the circuit.

An alternating e.m.f. of 110 V is applied to a circuit containing a resistance of 40 ohm and an inductance L, in an agle phi = tan^-1 3//4 . Find the impedance of the circuit

What do you mean by the impedance of LCR-circuit?

PUNJAB BOARD PREVIOUS YEAR PAPERS-ALTERNATING CURRENTS-EXERSICE
  1. What is an idle current ?

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  2. Define impedance of an a.c. circuit.

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  3. What is the impedance of a circuit ?

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  4. What is impedance of circuit at resonance ?

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

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

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  7. Define resonant frequency of LCR series circuit.

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  8. Which is more dangerous in use :a.c or d.c. ? Explain, why

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

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  10. The frequency of an ac supply is doubled, what happens to inductive re...

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  11. How does capacitive reactance Xc of a capacitor vary in an a.c. and d....

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  12. How does inductive reactance.XL of an inductor vary in d.c.and high fr...

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

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  14. Derive an our expressionforthe Power of an L.C.R.alternating current c...

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

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  16. An alternating e.m.f is supplied through apure inductance. Investigate...

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  17. Derive an expression for average power in an LCR a.c. circuit.

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  18. Prove mathematically that the average value of alternating current ove...

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

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

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