OHC

Acronym for Overhead camshaft.

Ohm

1. A unit of measurement used to indicate the amount of Resistance to the flow of electricity in a given circuit.
2. Unit of measurement of electrical resistance. One ohm exists when one volt causes a flow of one ampere.

Ohmic polarization

Losses created by the resistance to the flow of ions in the electrolyte and resistance to flow of electrons through the electrode and bipolar plate materials. Because both the electrolyte and fuel cell electrodes obey Ohm's law, the ohmic losses can be expressed by the equation Ohm = iR

Ohmmeter

An instrument used to measure the amount of electrical Resistance in a given unit or circuit (in ohms).

Ohm's law

Mathematical relationship between voltage, resistance, and amount of current in an electrical circuit. It states E=I x R; I=E/R; R=E/I

OHV

Acronym for Overhead valve -- Valve-in-head engine in which the valves are directly above the Piston.

OHV engine

See

• OHV

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