an electric bulb is inscripted as 100w and 110v.If it is connected to a 110v line,what will be its resistance
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Given
Power,P=100W
Voltage, v=110V
Resistance, R=?
Now P = v^2/R
R = v^2/P=(110)^2/100
R = 12100/100 = 121 ohm
Hence the resistance is 121 ohm.
Power,P=100W
Voltage, v=110V
Resistance, R=?
Now P = v^2/R
R = v^2/P=(110)^2/100
R = 12100/100 = 121 ohm
Hence the resistance is 121 ohm.
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