When the voltage across the resistor is 110V, the current flowing through it is 0.1 A.
| September 2, 2021 | education
When the voltage across the resistor is 110V, the current flowing through it is 0.1 A. What voltage should be applied to the resistor so that the current in it becomes 0.2A?
Given: U0 (initial voltage across the resistor) = 110 V; I0 (initial current strength) = 0.1 A; I1 (required amperage) = 0.2 A.
To determine the voltage that will need to be applied to the used resistor, we use the equality: U1 / I1 = R (resistor resistance) = U0 / I0, whence U1 = I1 * U0 / I0.
Calculation: U1 = 0.2 * 110 / 0.1 = 220 V.
Answer: The used resistor should be supplied with a voltage of 220 V.
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