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Calculate the electric power of an elect...

Calculate the electric power of an electric bulb of resistance `400 Omega` connected to a 220 V supply.

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To calculate the electric power of an electric bulb with a resistance of \(400 \, \Omega\) connected to a \(220 \, V\) supply, we can use the formula for electric power: \[ P = \frac{V^2}{R} \] where: - \(P\) is the electric power in watts (W), ...
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MODERN PUBLICATION-CURRENT ELECTRICITY-PRACTICE PROBLEMS
  1. In the previous problem, calculate the effective conductance if all th...

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  2. A wire of uniform cross section of resistance 16 Omega is divided into...

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  3. Calculate the electric power of an electric bulb of resistance 400 Ome...

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  4. An electric pump of 0.8 hp is used in water supply system in a house. ...

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  5. In the previous problem, calculate the units of energy consumed per da...

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  6. Calculate the resistance of an electric heater of 1 kW if it operates ...

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  7. In the previous problem, calculate the change in power taken by electr...

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  8. Calculate the percentage change in power of an electric heater if the ...

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  9. A current of 5 ampere flows in a 10 -ohm resistor. Calculate the rate ...

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  10. An electric bulb is rated as 220 V-55 W. find the value of its resista...

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  11. An electric bulb with rating 200 W, 50V is connected to a source of 12...

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  12. Three electric bulbs with markings 100 V-150 W, 100V-400W and 100V-500...

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  13. Three identical cells of emf 2 V and internal resistances 0.20 Omega a...

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  14. Three identical cells of emf 4.0 V are connected in parallel. The comb...

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  15. Arrange six identical cells of emf 2 V and internal resistance 0.5 Ome...

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  16. Arrange 32 identical cells of emf 2 V each with internal resistance 0....

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  17. Calculate the current passing through each resistor in the given circu...

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  18. Use the kirchhoff's rule to calculate the current through each resist...

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  19. A cell of emf epsilon and internal resistance r is connected across a ...

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  20. Two cells of 5 V and 10 V and internal resistances 0.8 Omega and 1.2 O...

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