Two light bulbs are connected to a 220 V network in parallel. The resistance of the first bulb is 360 ohms
| February 12, 2021 | education
Two light bulbs are connected to a 220 V network in parallel. The resistance of the first bulb is 360 ohms, and the second is 240 ohms, find the power consumption for both bulbs.
Initial data: U (voltage in the network to which two electric bulbs are connected in parallel) = 220 V; R1 (resistance of the first light bulb) = 360 ohms; R2 (resistance of the second light bulb) = 240 ohms.
1) Power consumption by the first light bulb: P1 = U ^ 2 / R1 = 220 ^ 2/360 = 134.44 W.
2) Power consumption of the second light: P2 = U ^ 2 / R2 = 220 ^ 2/240 = 201.67 W.
Answer: The power consumption of the bulbs is 134.44 W and 201.67 W, respectively.
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