A bulb is rated as 200v 40w what is its resistance
Answers
Answered by
2
Given,
potential difference (V) = 200v
power (p)=40w
Resistance (R)= ?
we know that,
P=V²/R
R=V²/P
=(200)²/40
=40000/40
=1000 ohm
potential difference (V) = 200v
power (p)=40w
Resistance (R)= ?
we know that,
P=V²/R
R=V²/P
=(200)²/40
=40000/40
=1000 ohm
Unknown111111:
please mark it as brainliest....
Answered by
0
Given,
V=200v
P=40w
we have to find R=?
P=V×V/R
R=V×V/P
R=4000/40
R=100ohm
V=200v
P=40w
we have to find R=?
P=V×V/R
R=V×V/P
R=4000/40
R=100ohm
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