Question

Factors on which resistance depends

Answer 1

R= rho×L/A

R= resistance

therefore Resistance of a conductor depends on :

1. rho = specific resistance or Resistivity

(Nature of the material and temperature)

Also The resistance is directly proportional to Resistivity.

If the material have more Resistivity then it has less current.

On increasing the temperature the resistance increases.

2. L = length of conductor

3. A = area of cross-section

Answer 2

Answer:

$\underline{\bigstar{\sf\ Factors\:on\:which\:resistance\:depends:-}}$

• Length of wire :

More the length of wire, more is the resistance.

• Area of wire :

More is the area, less is the resistance.

• Nature of wires :

Resistance depends upon nature of wires as conductors have almost nil resistance . Semi - Conductors have moderate resistance. Insulators have high resistance.

• Temperature:

With increase in temperature, resistance is more.

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