Question

A electric bulb is rated 200 v-100 v.Wbar is tge resistance? Five such bulbs burn for 4 hours. Claculate the cost of electrical energy consumed if the rate is rs 5 per unit

Answer 1

Answer:

please search google

Explanation:

i don't no

for ur answer

Answer 2

Using, P = V²R

we get R = V²P

= (200)²100

= 400

Energy consumed = P x t

= 100 x 4

= 400 Wh

= 0.4 kWh

Cost at the rate of 5 per unit

= Rs (5 x 0.4)

= Rs 2

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