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A pure inductor of 25.0 mH is connected ...

A pure inductor of 25.0 mH is connected to a source of 220 V. Find the inductive reactance and rms current in the circuit if the frequency of the source is 50 Hz.

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The inductive reactance,
`X_(L)=2pi vL=2xx3.14xx50xx25xx10^(-3)Omega`
`=7.85Omega`
The rms current in the circuit is
`I=(V)/(X_(L))=(220V)/(7.85Omega)=28A`
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NCERT TAMIL-ALTERNATING CURRENT-ADDITIONAL EXERCISES
  1. A pure inductor of 25.0 mH is connected to a source of 220 V. Find the...

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  2. An LC circuit contains a 20 mH inductor and a 50 mu F capacitor with a...

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  3. A coil of inductance 0.50H and resistance 100 Omega is connected to a ...

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  4. Obtain the answers to (a) and (b) Q.13, if the circuit is connected to...

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  5. A 100 muF capacitor in series with a 40 Omega resistance is connected ...

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  6. Obtain the answers to (a) and (b) in Q .15, if the circuit is connecte...

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  7. Keeping the source of frequency equal to the resonating frequency of t...

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  8. A circuit containing 0.1H inductor and a 500muF capacitor in series is...

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  9. Suppose the circuit in Exercise 7.18 has a resistance of 15 Omega Obta...

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  10. A series LCR circuit with L= 0.12H, C=480 nF, and R=23 Omega is connec...

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  11. Obtain the resonant frequency and Q – factor of a series LCR circuit w...

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  12. Answer the following questions : (a) In any a.c. circuit, is the app...

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  13. Answer the following questions : (a) In any a.c. circuit, is the app...

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  14. Answer the following questions : (a) In any a.c. circuit, is the app...

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  15. Answer the following questions : (a) In any a.c. circuit, is the app...

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  16. Answer the following questions : (a) In any a.c. circuit, is the app...

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  17. A power transmission line feeds input power at 2300 V to a step down t...

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  18. At a hydroelectric power plant, the water pressure head is at a height...

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  19. A small town with a demand of 800 kW of electric power at 220 V is sit...

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  20. Do the same exercise as above with the replacement of the earlier tran...

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