The voltage in the network is 220 V, and the resistance of the spiral of the lamp is 440 ohms
| September 27, 2021 | education
The voltage in the network is 220 V, and the resistance of the spiral of the lamp is 440 ohms. Calculate the amperage in an electric lamp.
Task data: U (mains voltage, lamp voltage) = 220 V; R (coil resistance of the lamp taken) = 440 ohms.
The current in the considered electric lamp is equal to the ratio of the mains voltage and the resistance of the spiral: I = U / R.
Calculation: I = 220/440 = 0.5 A.
Answer: A current of 0.5 A flows through the taken electric lamp.
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