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A light bulb is rated at 100W for a 220 ...

A light bulb is rated at 100W for a 220 V supply. Find
The rms current through the bulb.

Text Solution

Verified by Experts

Since, P = I V
`I = (P)/(V)=(100 W)/(220 V)=0.450 A`.
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VIKRAM PUBLICATION ( ANDHRA PUBLICATION)-ALTERNATING CURRENT -ADDITIONAL EXERCISES
  1. A light bulb is rated at 100W for a 220 V supply. Find The rms curr...

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  2. An LC circuit contains a 20 mH inductor and a 50 muF capacitor with an...

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  3. An LC circuit contains a 20 mH inductor and a 50 muF capacitor with an...

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  4. An LC circuit contains a 20 mH inductor and a 50 muF capacitor with an...

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  5. An LC circuit contains a 20 mH inductor and a 50 muF capacitor with an...

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  6. An L-C circuit contains 20 mH inductor and a 50 muF capacitor with an ...

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

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

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

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  10. Obtain the answers (a) to (b) in Exercise 13 if the circuit is connec...

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  11. A 100 mu F capacitor in series with a 40 Omega resistance is connecte...

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  12. A 100 mu F capacitor in series with a 40 Omega resistance is connecte...

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  13. Obtain the answers (a) to (b) in Exercise 15 if the circuit is connec...

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  14. Keeping the source frequency equal to the resonating frequency of the ...

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  15. A circuit containing a 80 mH inductor and a 60 mu F capacitor in serie...

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  16. A circuit containing a 80 mH inductor and a 60 mu F capacitor in serie...

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  17. A circuit containing a 80 mH inductor and a 60 mu F capacitor in serie...

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  18. A circuit containing a 80 mH inductor and a 60 mu F capacitor in serie...

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  19. A circuit containing a 80 mH inductor and a 60 mu F capacitor in serie...

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  20. Suppose the circuit in Exercise 18 has a resistance of 15 Omega. Obtai...

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  21. A series LCR circuit with L = 0.12 H, C = 480 nF, R = 23 Omega is conn...

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