defence exam Army Havildar SAC Mock Test Series 2025 Physics Electric Fields and Gauss' Law Electric Field
A circular wire loop of radius 10 cm carries a total charge of 10−5 C distributed uniformly over its length. A small length of 3.14 × 10−6 m of wire is cut off. The magnitude of electric field at the center due to the remaining wire is
(Assume \(\frac{1}{4 \pi \epsilon_{0}}\) = 9 × 109 Sl units)
1
30 N/C
2
40 N/C
3
35 N/C
4
45 N/C