Determine the resistance of an electric lamp, the current strength of which is 0.2A at a voltage of 220V.
| May 3, 2021 | education
Given: I (electric current in an electric lamp) = 0.2 A; U (effective voltage in the lamp) = 220 V.
According to Ohm’s law for a section of a circuit, the desired resistance of an electric lamp is equal to the ratio of the effective voltage and current: R = U / I.
Let’s calculate the resistance of the lamp: R = 220 / 0.2 = 1100 Ohm.
Answer: The taken lamp has a resistance of 1100 ohms.
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