The Ohm's Law formula for calculating voltage is __________.

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Multiple Choice

The Ohm's Law formula for calculating voltage is __________.

Explanation:
Voltage is the product of current and resistance: V = I × R. In many contexts voltage is denoted by E, so E = I × R expresses the same relationship. This formula is the direct way to calculate voltage from known current and resistance, showing how voltage increases with either higher current or higher resistance (for a fixed other variable). The other expressions describe power (P = V × I), current (I = V / R), or resistance (R = V / I), not voltage itself.

Voltage is the product of current and resistance: V = I × R. In many contexts voltage is denoted by E, so E = I × R expresses the same relationship. This formula is the direct way to calculate voltage from known current and resistance, showing how voltage increases with either higher current or higher resistance (for a fixed other variable). The other expressions describe power (P = V × I), current (I = V / R), or resistance (R = V / I), not voltage itself.

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