\xCF \xCD\xFC\xEC\xEF\xF2 \xF4\xEF\xF5 Ohm
\x95I = current (Amper)
\x95V = Voltage
\x95R = Resistance (\xC1\xED\xF4\xDF\xF3\xF4\xE1\xF3\xE7)
I = \frac{V}{R} \quad \text{or}\quad V = IR \quad \text{or} \quad R = \frac{V}{I}.