Question

find the resistance of conductor if 10 ma current flows across a potential difference of 200 v {1ma = 10^-3 A}

Answer 1

Answer:

Given:

Current = 10 mA

Potential Difference = 200 V

To find:

Resistance of the conductor

Concept:

Resistance is the property is any material (especially conductors) by the virtue of which it opposes the flow of current through it.

It can be found out by the relationship in OHM'S LAW provided the temperature is assumed constant.

Calculation:

$\sf{potential \: diff. = resistance \times current}$

$\sf{ = > 200 = resistance \times (10 \times {10}^{ - 3} )}$

$\sf{ = > 200 = resistance \times ( {10}^{ - 2} )}$

$\sf{ = > resistance = \dfrac{200}{ {10}^{ - 2} } }$

$\sf{ = > resistance = 20000 \: ohm }$

$\sf{ = > resistance = 2 \times {10}^{4} \: ohm }$

So final answer :

$\boxed{ \sf{ \huge{ \green{resistance = 2 \times {10}^{4} \: ohm }}}}$