The current in the circuit containing the rheostat is I = 3.2, the voltage between the terminals is U = 14.4.
| September 23, 2021 | education
The current in the circuit containing the rheostat is I = 3.2, the voltage between the terminals is U = 14.4. what is the resistance of that part of the rheostat in which there is a current.
Initial data: I (current in the circuit to which the rheostat is connected) = 3.2 A; U (voltage between the terminals of the taken rheostat) = 14.4 V.
The resistance of the active part of the rheostat is determined by the formula: R = U / I.
Calculation: R = 14.4 / 3.2 = 4.5 ohms.
Answer: The resistance of the active part of the rheostat is 4.5 ohms.
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