Two bulbs A and B are rated 100W, 120V and 10W, 120V respectively. They are connected across a 120V source in series which bulb will consume more power?
Question
Solution 1
The power consumed by a bulb is given by the formula P = V^2/R, where P is the power, V is the voltage, and R is the resistance.
Step 1: Calculate the resistance of each bulb using the formula R = V^2/P.
For bulb A, R_A = (120V)^2 / 100W = 144 ohms. For bulb B, R_B = (120V)^2 / 10W = 1440 ohms.
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