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If angular frequency of an A.C. source u...

If angular frequency of an A.C. source used in L-C-R circuit is increased, then inductive reactance ….... and capacitive reactance.....

A

Decrease, increase

B

Increase, increase

C

Increase, decrease

D

Decrease, decrease

Text Solution

Verified by Experts

The correct Answer is:
C
With decrease in frequency W inductive reactance `X_L =WL` increase and capacitive i = reactance `X_C=1/(omegac)` decrease.
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KUMAR PRAKASHAN-ALTERNATING CURRENTS -SECTION-D MCQs (DARPAN BASED ON TEXTBOOK)
  1. One inductor (of inductance L henry) is connected to an A.C. source, t...

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  2. If angular frequency of an A.C. source used in L-C-R circuit is decrea...

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  3. If angular frequency of an A.C. source used in L-C-R circuit is increa...

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  4. The force constant corresponds to …... electric quantity.

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  5. A coil having inductance of 1 mH is connected to an A.C. source, its i...

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  6. The reactance of a capacitor of 1/pi in are A.C. circuit having frequ...

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  7. An LCR series circuit with L =0.5H, C=10xx10^(-6) F, R=100 Omega is c...

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  8. In an L-C-R circuit , R=sqrt7Omega, XL=11Omega and XC=8Omega , then th...

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  9. Capacitive reactance of a capacitor for a D.C. circuit is.......

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  10. The expression for the A.C. supply voltage of 234V and frequency of 50...

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  11. The time taken by A.C. voltage of frequency 50 Hz to change from zero ...

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  12. When current passing through a series connection of 100Omega resistanc...

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  13. When 10 A current passes through 12Omega resistance, maximum voltage a...

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  14. When 1 muF capacitor is connected across V = 100 sqrt2 sin(100t)Volt, ...

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  15. Unit of omegaC is

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  16. 20Omega resistance is connected to V = 220sin (100pit) voltage source...

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  17. Above graphs are for reactance versu frequency of A.C. emf's frequency...

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  18. The resistance of a coil for D.C. is in ohms. In A.C. the resistance ....

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  19. A coil having inductance of 1 mH is connected to an A.C. source, its i...

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  20. In a series D.C. circuit has core of a reactance of 8Omega and a resis...

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