Determine the voltage at the ends of a 20 ohm conductor if the current in the conductor is 0.4 A.
| March 4, 2021 | education
Answer: 8 volts (V).
Ohm’s classic law says: The current in a conductor is directly proportional to the voltage at the ends of the conductor and inversely proportional to the resistance of the conductor.
I = U / R
Then: U = I * R
Where, I – current strength, A; R is the resistance of the conductor, Ohm; U – voltage, V.
U = 0.4 * 20 = 8V
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