Request a call back

Join NOW to get access to exclusive study material for best results

ICSE Class 10 Answered

What happens to the Resistance if the given wire is stretched and the length gets doubled and the area of cross section gets halved.
Asked by aashimegh | 07 Sep, 2019, 10:13: PM
answered-by-expert Expert Answer
Resistance R = ρ×(l/A)  ....................(1)
 
where ρ is resitivity of material, l is length of wire, A is area of cross section.
 
When length is doubled and area is ahlved , new resistance, R' = ρ×[ 2l / (A/2) ] = 4×ρ×(l/A)..............(2)
 
From (1) and (2), it can be seen that new resistance is 4 times of initial value
Answered by Thiyagarajan K | 07 Sep, 2019, 10:42: PM
ICSE 10 - Physics
Asked by vijayprabath7 | 28 Jan, 2024, 04:41: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Physics
Asked by foodonly742 | 02 Jan, 2024, 11:06: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Physics
Asked by krishnathakurt139 | 06 Dec, 2023, 09:23: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Physics
Asked by praggya.srivastava.g1972 | 13 Oct, 2023, 10:51: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Physics
Asked by praggya.srivastava.g1972 | 11 Sep, 2023, 08:48: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Physics
Asked by praggya.srivastava.g1972 | 10 Sep, 2023, 10:52: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Physics
Asked by umarakhtar659 | 01 Aug, 2023, 05:58: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
Get Latest Study Material for Academic year 24-25 Click here
×