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WHICH LIGHT BULB IS THE BRIGHTEST?: PRACTICE EXERCISE CIRCLE THE LIGHT BULB THAT IS THE BRIGHTEST 60W 75W R2 I, = 200W Ri Pi = 120V 1. Calculate the resistance for each bulb at 120V for the stated power. 2. Calculate Re for the circuit 3. Calculate the current in the circuit. 4. Calculate the voltage drop across each bulb. 5. Calculate the power consumed by each bulb. Req-2400 + 1920 + 72Ω = 504Ω I- AV/R. 120V/5042-0.238A Ex: Δν,-1-R1-0.238A. 240Ω = 57.1V Ex: P-AVi/RI- (57.IV)/24002-13.6W

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60 W 15w 200 w 11ニ0.23 8 A 12= 0.2384 I3 0 238 A AN Pa00W 1 22 Pi 〉 P2〉 P3 erpower consumption of the bulb increases the brightness of the bulb.

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