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In order to continue emission of electro...

In order to continue emission of electromagnetic waves from LC oscillations, we should

A

increase the capacitance of a capacitor.

B

increase the inductance of an inductor.

C

continuously supply energy to LC circuit which can compensate the energy lost in emission.

D

use silver wire in LC circuit (which has low resistance)

Text Solution

Verified by Experts

The correct Answer is:
C
Because by doing so, oscillations are sustained with same amplitude and the circuit remains in the condition of resonance.
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KUMAR PRAKASHAN-ALTERNATING CURRENTS -SECTION-D MCQs (DARPAN BASED ON TEXTBOOK)
  1. ...... Oscillates in LC circuit.

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  2. Charge in LC oscillations,

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  3. In order to continue emission of electromagnetic waves from LC oscilla...

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  4. In LC oscillator circuit, at t = 0, ……

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  5. In L-C oscillator circuit ………..

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  6. In L-C oscillator circuit inductor ……….

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  7. At t = 0, time in L-C oscillator circuit …….

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  8. In R-C circuit when charge on the plate of the capacitor is increasing...

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  9. In an L-C oscillator circuit having a completely charged capacitor, wi...

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  10. Time taken from zero to maximum for an A.C. voltage of frequency 50Hz ...

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  11. Initially conditions of L-C oscillator circuit ……….

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  12. In R-C circuit when charge on the plate of the capacitor is increasing...

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  13. In oscillator circuit, presence of .........are necessary

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  14. Generally, core of transformer is made up of ……...

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  15. Which of following quantities remains constant in transformer ?

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  16. Working of a transformer is based upon principle of …...

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  17. If NP and NS are respectively no. of turns in primary and secondary co...

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  18. Transformation ratio of one transformer is 1:2. If Leclanche cell havi...

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  19. 240 A.C. mains supply is given to one transformer which draws 0.7 A fr...

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  20. If the coils of a transformer are made up of thick wire, then ...

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