cuarent
what is the relation Connecting current
and pd ? Name and state the law behind
it.
Define resistance and conductance with
units. write equations also ?
How is the resistance of a conductor related to its length and area
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V = IR where I is current,R is resistance and V is the potential difference across the conductor.
The law's name is Ohm's law.
Ohm's law states that potential difference is directly proportional to current provided that the temperature remains constant.
Resistance is the obstruction offered to the flow of current in a conductor. Ohm is the unit.
Conductance is the reciprocal of resistance. 1/ohm or siemen is the unit of it.
Resistance is directly proportional to length of conductor and inversely proportional to the area of the conductor.
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