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An inductor 2//pi Henry, a capacitor 100...

An inductor `2//pi` Henry, a capacitor `100//T muF` and a resistor `75Omega` are connected in series across a source of emf `V=10sin 100pit`. Here t is in second. (a) find the impedance of the circuit. (b) find the energy dissipated in the circuit in 20 minutes.

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The correct Answer is:
`125 Omega,288 J`
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RESONANCE-ALTERNATING CURRENT-Exercise -1 Part-1
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  2. A coil draws a current of 1.0 ampere and a power of 100 watt from an A...

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  3. An inductor 2//pi Henry, a capacitor 100//T muF and a resistor 75Omega...

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  4. A series circuit consists of a resistance inductance and capacitance.T...

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  5. An inductance of 2.0 H, a capacitance of 18 muF and a resistance of 10...

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  6. An inductor-coil , a capacitor and an AC source of rms voltage 24 V ar...

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  7. An electro magnetic wave of wavelength 300 metre can be transmitted by...

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  8. A transformer has 50 turns in the primary and 100 in the secondary. If...

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  9. In a transformer ratio of secondary turns (N(2)) and primary turns (N(...

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  10. r.m.s. value of current i=3+4 sin (omega t+pi//3) is:

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  11. The peak value of an alternating emf E given by E=(E0) cos omega t ...

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  12. The voltage of an AC source varies with time according to the equation...

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  13. An alternating voltage is given by: e = e(1) sin omega t + e(2) cos om...

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  14. An AC voltage is given by E=E(0) sin(2pit)/(T). Then the mean value of...

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  15. An AC voltage of V=220sqrt2 sin (100 pit-pi/2) is applied across a DC ...

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  16. The average power delivered to a series AC circuit is given by (symbol...

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  17. In an LCR circuit the energy is dissipated in

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  18. The potential difference V across and the current I flowing through an...

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  19. A direct current of 2 A and an alternating current having a maximum va...

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  20. A sinusoidal ac current flows through a resistor of resistance R . If ...

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