Question

a bulb rated at 200v_100w.5 such bulbs burn for 4 hours daily for 20 days. what is the electrical energy consumed? calculated the cost if the rate is ₹4.6 per unit

Answer 1

Ans kya h ??? pls tell me

Answer 2

Using, P = V²R

we get R = V²P

= (200)²100

= 400

Energy consumed = P x t

= 100 x 80

= 8000 Wh

= 8 kWh

Cost at the rate of 4.6 paise per unit

= Rs (8 x 4.6)

= Rs 36.8

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