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
0 votes
4.5k views
in Physics by (56.2k points)

A long solenoid has 200 turns per cm and carries a current I. The magnetic field at its centre is 6.28 × 10–2 weber/m2. Another long solenoid has 100 turns per cm and it carries a current I/3. The value of the magnetic field at its centre is

(a) 1.05 × 10–4Wb/m2 

(b) 1.05 × 10–2Wb/m2

(c) 1.05 × 10–5Wb/m2 

(d) 1.05 × 10–3Wb/m2 

1 Answer

+1 vote
by (78.5k points)
selected by
 
Best answer

Correct Option(b) 1.05 × 10–2Wb/m2

Explanation:

Magnetic field due to a long solenoid is given by

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

...