The amount of electrical energy produced by a battery/source per unit charge, measured in volts.

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Power

Rate of transfer of electrical energy to a component per second, measured in watts.

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Resistance

Potential difference divided by current, it is the electrical energy used when a current of 1 amp moves through a component, measured in ohms.

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Electrical Current

Number of charged particles passing a point per second, measured in amps.

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Potential Difference/Voltage

The amount of electrical energy converted or transferred per unit charge between two points, measured in volts.

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Ohm's Law

The current passing through a conductor is proportional to the voltage, as long as the physical conditions remain the same (temperature etc.).

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Resistivity

The resistance of a 1m^2 cross section conductor with length 1m.

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Critical Temperature

The temperature that below which a superconductor has no resistance and very large currents can pass through with very small voltage/very small energy losses.

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Internal Resistance

An electrical source or cell's opposition the flow of charge through it, defined as the loss of pd per unit current when a current passes through the source/cell.

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Isotopes

Nuclides with the same number of protons but different number of neutrons in their nuclei.

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Pair Production

When a particle and its corresponding anti-particle are produced from a photon with energy greater than the total rest energy of the two particles.

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Annihilation

When a particle and its corresponding anti-particle collide they annihilate, converting their kinetic energy and rest energies into two high energy photons (with energy E=hf).

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Other cards in this set

Card 2

Front

Rate of transfer of electrical energy to a component per second, measured in watts.

Back

Power

Card 3

Front

Potential difference divided by current, it is the electrical energy used when a current of 1 amp moves through a component, measured in ohms.

Back

Card 4

Front

Number of charged particles passing a point per second, measured in amps.

Back

Card 5

Front

The amount of electrical energy converted or transferred per unit charge between two points, measured in volts.

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