An electrical appliance is rated 1500 W, 250 V. This appliance is connected to 250 V mains. The cost of electrical energy for 60 hrs if consumed at 2.50 per kWh is:

Rs. 225

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Rs. 90

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Rs. 250

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RS 100

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Solution

The correct option is A
Rs. 225

Electrical energy = P x t = 1500 x 60

= 90 x 10³ Wh

= 90 kWh.

Cost of electrical energy = Rs. (2.50 x 90) = Rs. 225

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Q. An electrical appliance is rated 1500 W, 250 V. This appliance is connected to 250 V mains.
Calculate :
(i) The current drawn
(ii) The electrical energy consumed in 60 hours
(iii) The cost of electrical energy consumed at Rs. 2.50/kWh.

Q. An electrical appliance is rated

1500 W, 250 V

. This appliance is connected to

250 V

mains. Calculate the current drawn.

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An electrical appliance is rated 1500 W, 250 V. This appliance is connected to 250 V mains. The cost of electrical energy for 60 hrs if consumed at 2.50 per kWh is:

The correct option is A Rs. 225Electrical energy = P x t = 1500 x 60 = 90 x 103 Wh = 90 kWh. Cost of electrical energy = Rs. (2.50 x 90) = Rs. 225

The correct option is A
Rs. 225

Electrical energy = P x t = 1500 x 60

= 90 x 10³ Wh

= 90 kWh.

Cost of electrical energy = Rs. (2.50 x 90) = Rs. 225