I - Current

V - Voltage

R - Resistance

P - Power

Current -

• V / R

• P / V

• (Sq. Root R) / P

Voltage -

• I x R

• Sq. Root (P x R)

• P / I

Resistance -

• V² / P

• V / I

• P / I²

Power -

• V x I

• V² / R

• I² x R

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