An electric bulb is rated 250W, 230V. Calculate:
i) the energy consumed in 1hr
ii) the time in which the bulb will consume 1.0kWh energy when connected to 230V mains.
Answers
Answered by
10
from,W = VI
I = W/V = 250/230 = 1.05 A
(i) energy consumed in 1 hour = VIT =230×1.05×1 = 250 joule
(ii) time = 4 hours.
I = W/V = 250/230 = 1.05 A
(i) energy consumed in 1 hour = VIT =230×1.05×1 = 250 joule
(ii) time = 4 hours.
Answered by
9
Answer:
Explanation:
P=250w
V=230
E=p*t
1*60*66
=3600
E=250*36000
=9*105j
2)1000wh=250*t
T=1000/250
=4hrs
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