At a voltage of 220 V at the terminals of the resistor, the current is 0.1 A. What voltage is applied
| August 7, 2021 | education
At a voltage of 220 V at the terminals of the resistor, the current is 0.1 A. What voltage is applied to the resistor if the current in it becomes 0.005 A?
1. Determine the resistance of the resistor, based on Ohm’s law for the section of the circuit: I = U / R, hence R = U / I = 220 / 0.1 = 2200 Ohm.
2. Determine the voltage across the resistor when the current strength in it changes to 0.005 A: U1 = I1 * R = 0.005 * 2200 = 11 V.
Answer: 11 Volts
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