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CBSE Class 10 Answered

how electricity passes through a area of cross section  
Asked by kiransudhakommuru | 12 Oct, 2018, 02:37: PM
answered-by-expert Expert Answer
We know that,
 
R = ρl/A
 
This means that as the area of cross section increases, resistance decreases.
Which means resistance is inversely proportional to area of cross section. 
And if resistance is less more current can flow through the wire.
Thus, current is diretly proportional to area of cross-section.  
Answered by Shiwani Sawant | 15 Oct, 2018, 11:44: AM

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