Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
+1 vote
9.3k views
in Physics by (79.8k points)

A long wire A carries a current of 10 amp. Another long wire B, which is parallel to A and separated by 0.1 m from A, carries a current of 5 amp. in the opposite direction to that in A. What is the magnitude and nature of the force experienced per unit length of B  [μ0 = 4π x 10-7  weber/amp – m]

(a) Repulsive force of 10-4 N / m

(b) Attractive force of 10-4 N / m

(c) Repulsive force of 2π x 10-4 N / m

(d) Attractive force of 2π x 10-5 N / m

1 Answer

+1 vote
by (71.7k points)
selected by
 
Best answer

Correct option (a) Repulsive force of 10-4 N / m

Explanation: 

Wires are carrying current in opposite direction so the force will be repulsi

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...