Question

If you want to reduce the resistance of the conductor then you will reduce
its cross sectional area or reduce its length. Justify your answer also.​

Answer 1

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$\huge \purple {ANSWER}$

The resistance of a conductor is directly proportional to its length. so if length is increased then resistivity increases ande vice versa. so if length is doubled resistance will also get doubled i.e resistance is 4 times that of original resistance.

Now, the resistance of a conductor is inversely proportional the area  of cross section. The larger the cross sectional area, the lower the resistance since the electrons have a larger area to flow through.

So , your Resistance will become doubled.  

Answer 2

$\huge\red{Answer}$

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☆☞ [ Verified Answer ]☜☆

• The resistance of a conductor is directly proportional to its length.

• Now, the resistance of a conductor is inversely proportional the area of cross section.

• The larger the cross sectional area, the lower the resistance since the electrons have a larger area to flow through.

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