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In a series L-C-R circuit, resistance R ...

In a series L-C-R circuit, resistance R = 10 `Omega` and the impedance Z =20 `Omega` . The phase = difference between the current and the voltage is .....

A

`30^@`

B

`45^@`

C

`60^@`

D

`90^@`

Text Solution

Verified by Experts

The correct Answer is:
C
cos `delta=R/Z`
`=10/20`
`=1/2`
`therefore delta=cos^(-1) (1/2)`
`therefore delta=60^@`
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KUMAR PRAKASHAN-ALTERNATING CURRENTS -SECTION-D MCQs (DARPAN BASED ON TEXTBOOK)
  1. In an A.C. circuit, a resistance of R Omega connected in series with a...

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  2. A 12 Omega resistor and a 0.21 henry inductor are connected in series ...

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  3. In a series L-C-R circuit, resistance R = 10 Omega and the impedance Z...

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  4. An inductance of (200/pi) mH, a capacitance of (10^(-3)/pi)F and a res...

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  5. At which angular frequency of source, current in series LCR A.C. circu...

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  6. When resonance takes place in series LCR A.C. circuit,

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  7. For one series LCR A.C. circuit, voltages across L, C and R are each 1...

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  8. For resonance in above circuit angular frequency and amplitude of curr...

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  9. The value of the Q-factor in an L-C-R series circuit is ……..

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  10. What is the rms value of the current for A current I=100 cos (200t + 4...

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  11. Resonance frequency for L-C-R, AC series circuit is f0= ……

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  12. For L-C-R, A.C. circuit resonance frequency is 600 Hz and frequencies ...

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  13. For series L-C-R circuit, L = 10mH and C = 10^(-7) F If resonance freq...

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  14. The current from an A.C. source is given by I = 2cos(omegat + phi) the...

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  15. For an L-C-R series circuit, the Q-factor is …

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  16. 20Omega resistor is connected with the A.C. source of V = 282sin (120 ...

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  17. The sharpness of an L-C-R series resonance curve …...

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  18. The value of half power bandwidth of resonance curve of L-C-R series c...

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  19. Q - factor for resonance curve of L-C-R series circuit is defined as ....

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  20. In a series L-C-R circuit R = 100Omega, L = 1H and C= 1 mu E The half ...

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