Understanding Electric Circuits

Front

Electric Circuit

Back

Path for electric current flow

Front

Current (I)

Back

Flow of electric charge, measured in Amperes (A)

Front

Voltage (V)

Back

Electric potential difference, measured in Volts (V)

Front

Resistance (R)

Back

Opposition to current flow, measured in Ohms (Ω)

Front

Ohm's Law

Back

V = I × R

Front

Series Circuit

Back

Components connected end-to-end, same current flows through each

Front

Parallel Circuit

Back

Components connected across same voltage, different current paths

Front

Power (P)

Back

Rate of energy transfer, P = V × I, measured in Watts (W)

Front

Kirchhoff's Voltage Law

Back

Sum of voltages around a closed loop equals zero

Front

Kirchhoff's Current Law

Back

Sum of currents entering a junction equals sum leaving