If R1 and R2 be the resistance of the filament of 40 W and 60 W respectively operating 220 V, then
If R1 and R2 be the resistance of the filament of 40 W and 60 W respectively operating 220 V, then
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Given that,
Power of R₁ = 40 W
Power of R₂ = 60 W
Voltage = 220 V
We need to calculate the value of resistance R₁
Using formula of power
Where, P = power
V = voltage
R = resistance
We need to calculate the value of resistance R₂
Using formula of power
Put the value into the formula
Hence, The value of resistance R₂ and R₁ are 1210 Ω and 806.6 Ω
Answer:
Explanation:
Given that,
Power of R₁ = 40 W
Power of R₂ = 60 W
Voltage = 220 V
We need to calculate the value of resistance R₁
Using formula of power
Where, P = power
V = voltage
R = resistance
We need to calculate the value of resistance R₂
Using formula of power
Put the value into the formula
Hence, The value of resistance R₂ and R₁ are 1210 Ω and 806.6 Ω