If the diameter of a copper wire is doubled its current carrying capac

1.	If the diameter of a copper wire is doubled its current carrying capacity becomes
Answer» Answer: If the diameter of a copper wire is doubled then its current carrying capacity will become become double. Explanation: According to the Ohm's Law V=IR Therefore I ∝1/R That means I will increase if R DECREASES. And I know that R ∝ Ρ*L/A where P = density , l = LENGTH and A = Area Area is INVERSELY PROPORTIONAL to Resistance that means Area decreases if R increases. Now we know that R is inversely proportional to both Area and Current. That means Area is directly proportional to Current i.e. A ∝ I Hence, if the diameter of a copper wire is doubled then its current carrying capacity becomes double.

If the diameter of a copper wire is doubled its current carrying capacity becomes

Answer»

Answer:

If the diameter of a copper wire is doubled then its current carrying capacity will become become double.

Explanation:

According to the Ohm's Law

V=IR

Therefore I ∝1/R

That means I will increase if R DECREASES.

And I know that

R ∝ Ρ*L/A where P = density , l = LENGTH and A = Area

Area is INVERSELY PROPORTIONAL to Resistance that means Area decreases if R increases.

Now we know that R is inversely proportional to both Area and Current.

That means Area is directly proportional to Current i.e.

A ∝ I

Hence, if the diameter of a copper wire is doubled then its current carrying capacity becomes double.

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