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Electric 電力 measurement

Reference data と engineering information about electric 電力 measurement for electrical applications.

electricpowermeasurement計算機

Overview

Engineering reference data for Electric Power Measurement in electrical engineering.

Key Formulas

Ohm's Law

V=IRV = IR

Voltage = Current × Resistance.

Power

P=VI=I2R=V2/RP = VI = I^2R = V^2/R

Electrical power.

Energy

E=PtE = Pt

Energy = Power × Time.

Variables

SymbolDescriptionUnit
VVVoltageV
IICurrentA
RRResistanceΩ
PPPowerW

References