define resistance and it's factors
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The resistance of a conductor s the ratio of its p.d across the ends to the current flowing through it.
factors affecting it are:
1 length of the wire.
2 cross sectional area of the wire.
3 material of the wire.
4 temperature of the wire.
factors affecting it are:
1 length of the wire.
2 cross sectional area of the wire.
3 material of the wire.
4 temperature of the wire.
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