If a wire of resistance R is cut into 4 equal parts and joined in para…

Question

If a wire of resistance R is cut into 4 equal parts and joined in parallel, the new resistance is:

Accepted Answer

B. R/16

Each piece has resistance R/4 (since R ∝ length).
**Four such pieces in parallel:** R_eq = (R/4)/4 = R/16. So total drops by factor 16.

Answer

R/4

Answer

R

Answer

16R

If a wire of resistance R is cut into 4 equal parts and joined in parallel, the new resistance is: