Calculators

Calculates voltage, current, or resistance in an electrical circuit using Ohm's Law (V=IR).

Calculates electrical power using voltage, current, and resistance, based on the formulas P=VI, P=I²R, and P=V²/R.

Calculates the magnetic field strength at a distance from a long, straight wire carrying current.

Calculates the force exerted on a moving charge by electric and magnetic fields.

Calculates the induced electromotive force (EMF) in a circuit based on Faraday's Law of Induction. This law states that the EMF is proportional to the rate of change of magnetic flux through a circuit.

Calculates the reduction in voltage across a component or length of wire in a circuit.

Determines the resistance and tolerance of a resistor based on its colored bands.

Calculates the total equivalent resistance of resistors connected end-to-end.

Calculates the total equivalent resistance of resistors connected in parallel.

Calculates the total equivalent capacitance of capacitors connected in series.