A divice of 500 w, 250v works in 100 v.
a)what is its power.
b)what is the energy used in 250v for 5 minutes working?
Answers
Answered by
0
Answer:
a- 200
Explanation:
p= vi
500= 250×i
》i= 2
again p= vi
p= 100× 2
=200
Answered by
0
Answer:
Resistance of the 220V, 100W bulb is given by R = V2/P = 2202/100 = 484Ω Thus,when connected in series , total resistance will be 484+484=968ohm
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