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Show that in a.c. circuit the, average p...

Show that in a.c. circuit the, average power dissipated per cycle in a pure inductor is zero.

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A voltage V_0sinomegat is applied to a series LCR circuit, Derive the expression for the average power dissipated over a cycle. Under what condition is (i) no power dissipated even though the current flows through the circuit,(ii) maximum power dissipated in the circuit?

Show that a purely inductive ac circuit dissipates no power.

For a given ac i=i_msinomegat , show that the average power dissipated in a resistor R over complete cycle is 1/2i_m^2R .

A circuit is set up connecting L=100 mH, C= 5muF and R= 100Omega is series, An alternating emf of (150sqrt2)vol t,500/piHz is applied across this series combination. Calculate the impedance of the circuit. What is the average power dissipated in the inductor?

A circuit is set up connecting L=100 mH, C= 5muF and R= 100Omega is series, An alternating emf of (150sqrt2)vol t,500/piHz is applied across this series combination. Calculate the impedance of the circuit. What is the average power dissipated in the resistor

Show that the average power consumed in an inductor L connected to an source is zero.

Show that a purely capacitative ac circuit dissipates no power.

When an ac source is connected to an ideal capacitor, show that the average power supplied by the source over a complete cycle is zero.

Show that in the free oscillations of an LC circuit, the sum of energies stored in the capacitor and the inductor is constant in time.

UNITED BOOK HOUSE-QUESTION PAPER 2017-EXERCISE
  1. In a nuclear decay, a nucleus emits one alpha-particle and then two be...

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  2. If two inputs of a NAND gate are joined, what type of a gate is formed...

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  3. State one difference between n-type and p-type semiconductors.

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  4. In a transistor emitter-base junction is always forward biased while t...

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  5. Show that equivalent resistance in parallel combination is always less...

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  6. How can the sensitivity of a potentimeter be increased ?

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  7. A Potentiometer has 10 wires each of 1 metre length and the total resi...

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  8. Draw a graph representing the change in specific resistance with tempe...

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  9. Find the equivalent resistance between the two ends A and B of the fol...

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  10. Define lost volt,State the factors on which the internal resistance of...

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  11. Define Wattless current.

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  12. Show that Lenz's law obeys the law of conservation of enrgy.

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  13. Show that in a.c. circuit the, average power dissipated per cycle in a...

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  14. Compare between inductive reactance and capacitive reactance.

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  15. State the factors on which the peak value of alternating emf depend.

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  16. In an LCR series combination, R=400Omega , L=100 mH and C=1muF. This c...

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  17. In an LCR series combination, R=400Omega , L=100 mH and C=1muF. This c...

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  18. With diagram, state the reason for short sightedness and mention its r...

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  19. In a certain midium the path difference 5xx10^-5 cm corresponds to a p...

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  20. The optic axes of two polaroids are inclined at an angle of 45@ with e...

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