# What should be the voltage at the ends of the circuit section so that the current in the conductor is 1.0A

What should be the voltage at the ends of the circuit section so that the current in the conductor is 1.0A, if at a voltage of 3V the current in the same conductor is 0.5A?

Initial data: I1 (required current in the circuit) = 1 A; U1 (initial voltage at the ends of the circuit section) = 3 V; I1 (initial amperage) = 0.5 A.

The desired voltage at the ends of the circuit section is determined from the equality: R = const = U1 / I1 = U2 / I2, whence U2 = U1 * I2 / I1.

Calculation: U2 = 3 * 1 / 0.5 = 6 V.

Answer: The voltage at the ends of the circuit section should be 6 V.

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