Is it true that current will flow more easily through a thin wire than a thick wire of the same material when connected to the same source?

see full answer

Start JEE / NEET / Foundation preparation at rupees 99/day !!

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!

An Intiative by Sri Chaitanya

True

False

answer is B.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

The above statement is False.
We know that the resistance of a wire is formulated as,

R = ρ \frac{l}{A}

where,

l

is the length of the wire, A is the area of cross-section of the wire and ρ is resistivity.
We can see by the formula that resistivity is inversely proportional to the cross-sectional area of the conductor. So, when a thick wire is used, the area of the cross-section is more, and the resistance is small, and when a thin wire is used, the area of the cross-section is less, and the resistance is more. Current can flow easily through a wire in which resistance is low. So, for thick wire, resistance is low and current will flow through thick wire more easily than a thin wire.
The correct statement would be current will flow more easily through a thick wire than a thin wire of the same material when connected to the same source.

Watch 3-min video & get full concept clarity

Result Producing online coaching for JEE/NEET of south India

Largest All India Test Series for JEE/NEET

Best Books for IIT JEE

Best Books for NEET

How to Join IIT after 10th

🔥 Start Your JEE/NEET Prep at Just ₹1999 / month - Limited Offer! Check Now!

Get Expert Academic Guidance – Connect with a Counselor Today!

Result Producing online coaching for JEE/NEET of south India

Largest All India Test Series for JEE/NEET

Best Books for IIT JEE

Best Books for NEET

How to Join IIT after 10th