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Terms in this set (12)
Electrical energy transformed from other forms per unit charge
Mean Drift Velocity
The average displacement travelled by the electrons along the wire per unit time opposite to the direction of conventional current flow
The loss of voltage in the battery per unit current. The resistance of the internal components of a battery.
The energy transferred when a machine with a power of 1 kW operates for a time of 1 hour
Kirchhoff's First Law
The total current into a junction equals the total current out (charge is conserved)
Kirchhoff's Second Law
The sum of e.m.f 's equals the sum of p.d 's around a closed loop in a circuit (energy is conserved)
For a conductor at constant temperature, the current flowing through the conductor is directly proportional to the potential difference across it.
The energy transferred per unit charge from electrical to other forms
Energy transferred per unit time
(Resistance x Cross-Sectional Area)/Length of the wire
One watt is the power used when one joule of energy is transferred per second
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