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If the cost per unit is 4.50, calculate ...

If the cost per unit is 4.50, calculate in part (a) the amount of electric bill to be paid per month. and it is also given that power of each bulb is 100W and each fan is 60w and there is two bulbs and two fans in the house or each is used for 10 hr each day

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Given, power of each bulb = 100 W, power of each fan = 60 W, time t = 10 h each day.
Total cost ` = 96 xx Rs. 4.50 = Rs . 432 .0 `
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ICSE-CURRENT ELECTRICITY-EXERCISE-8(C) NUMERICALS
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  2. An electric bulb of resistance 500 ohm draws current 0.4 A from the so...

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  3. An electric bulb of resistance 500Omega, draws a current of 0.4 A. Cal...

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  4. A current of 2 A is passed through a coil of resistance 75 ohm for 2 m...

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  5. A current of 2 A is passed through a coil of resistance 75 ohm for 2 m...

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  6. Calculate the current through a 60 W lamp rated for 250 V. If the line...

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  7. An electric bulb is rated '100 W, 250 V'. How much current will the bu...

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  8. An electric bulb is rated "220 V, 100 W'. What is its resistance ?

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  9. An electric bulb is rated "220 V, 100 W'. What safe current can be ...

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  10. A bulb of power 40 W is used for 12.5 h each day for 30 days. Calculat...

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  11. An electric press is rated 750 W, 230 V'. Calculate the electrical ene...

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  12. An electrical appliance having a resistance of 200 Omega is operated ...

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  13. An electrical appliance having a resistance of 200 Omega is operated ...

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  14. A bulb rated 12 V, 24 W operates on a 12 volt battery for 20 minutes. ...

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  15. A bulb rated 12 V, 24 W operates on a 12 volt battery for 20 minutes. ...

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  16. A current of 0.2 A flows through a wire whose ends are at a potential ...

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  17. A current of 0.2 A flows through a wire whose ends are at a potential ...

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  18. What is the resistance, under normal working conditions, of an electri...

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  19. Two bulbs are rated 60 W, 220 V' and '60 W, 110 V respectively. Calcul...

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  20. An electric bulb is rated 250 W, 230 V'. Calculate: the energy con...

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  21. An electric bulb is rated 250 W, 230 V'. Calculate: the time in wh...

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