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Why an inductor is an easy path for d.c....

Why an inductor is an easy path for d.c. and resistive path for a.c?

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Show that a capacitor is an easy path for a.c. but a block for d.c. (i.e. offers infinite resistance for d.c.).

An inductor acts as a conductor for d.c., why?

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Derive the expression for the impedance of an a.c. circuit with an inductor ‘L’, capacitor ‘C’ and a resistor ‘R’ in series. What iscondition of resonance ?

An inductor L, a capacitor 20muF and a resistor 10 ohm are connected in series with an a.c. source of frequency 50 Hz. If the current is in phase with the voltage. Calculate the inductance of the inductor.

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MODERN PUBLICATION-ALTERNATING CURRENTS-EXERCISE
  1. Why an inductor is an easy path for d.c. and resistive path for a.c?

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  2. A lamp is connected in series with a capacitor to a high frequency a.c...

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  3. An air core coil and an electric bulb are connected in series across a...

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  4. Answer the following questions: A choke coil in series with a lamp is ...

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  5. A lamp is connected in series with a capacitor. What will happen if d....

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  6. Explain : voltages across L and C in series are 180^(@) out of phase, ...

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  7. The total impedance of a circuit decreases, when a capacitor is added ...

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  8. When an a.. Circuit with a series combination of inductance, capacitan...

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  9. When a capacitor is connected in series LR circuit the alternating cur...

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  10. An alternating voltage of frequency f is applied across LCR circuit. L...

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  11. An alternating voltage of frequency f is applied across LCR circuit. L...

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  12. Give applications of resonance in series LCR circuit.

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  13. An capacitor C, a variable resistor R and a bulb B are connected in se...

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  14. An capacitor C, a variable resistor R and a bulb B are connected in se...

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  15. A capacitor with capacitance C and a coil with active resistance R and...

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  16. An inductor L of inductance X(L) is connected in series with a bulb B ...

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  17. An inductor L of inductance X(L) is connected in series with a bulb B ...

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  18. As shown in figure an electric lamp having coil of negligible inductan...

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  19. As shown in figure an electric lamp having coil of negligible inductan...

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  20. In the circuit shown below R represents an electric bulb. If the frequ...

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  21. Show in the figure, two electric circuits A and B. Calculate the ratio...

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