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14 results for “voltage”

Formulae (14)

V = IR

Voltage equals current times resistance.

V = IR

Voltage across a resistor equals current times resistance.

\sum V = 0

The sum of voltages around any closed loop is zero.

V = k\frac{q}{r}

Potential due to a point charge.

V = IR

Voltage equals current times resistance.

P = \frac{V^2}{R}

Power from voltage and resistance.

C = \frac{Q}{V}

Charge stored per unit voltage.

V_{out} = V_{in}\frac{R_2}{R_1 + R_2}

Output voltage from two series resistors.

\sum V = 0

Voltages around any closed loop sum to zero.

V_{rms} = \frac{V_{peak}}{\sqrt{2}}

Effective value of a sinusoidal voltage.

dB = 20\log_{10}\frac{V_2}{V_1}

Voltage ratio in decibels.

\frac{V_p}{V_s} = \frac{N_p}{N_s}

Voltage ratio equals turns ratio.

V_{out} = V_{in}\frac{R_2}{R_1 + R_2}

Output of a two-resistor divider.

\frac{V_p}{V_s} = \frac{N_p}{N_s}

Voltage ratio equals the turns ratio.