Question

11. Mention the factors affecting
resistance. 2 marks​

Answer 1

Answer:

Factors That Affect Resistance

How much resistance a material has depends on several factors: the type of material, its width, its length, and its temperature. All materials have some resistance, but certain materials resist the flow of electric current more or less than other materials do.

Explanation:

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Answer 2

Answer:

List of Factors affecting resistance

Explanation:

Resistance decreases with an increase in temperature. The thermistor is a temperature-dependent resistor and its resistance decreases as temperature rises. The thermistor is used in a circuit that senses temperature change. There are four factors on which resistance depends.

Length(L)

it’s cross-sectional area(A)

the type of material

nature of material

The resistance of a wire depends both on the cross-sectional area and length of the wire and on the nature of the material of the wire. Thick wires have less resistance than thin wires. Longer wires have more resistance than short wires. Copper wire has less resistance thin steel wire of the same size. Electrical resistance also depends on temperature. At a certain temperature and for a particular substance.