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
2.5k views
in Physics by (48.4k points)
closed by

A metallic rod of mass per unit length 2. is lying horizontally on a smooth inclined plane which makes an angle of 45º with the horizontal. The rod is not allowed to slide down by flowing a current through it when a magnetic field of induction B is acting on it in the vertical direction. The minimum current flowing in the rod to keep it stationary is:

(1) \(\frac{\lambda g}B\)

(2) \(\frac{\sqrt 2\,\lambda g}B\)

(3) \(\frac{\lambda g}{\sqrt2\,B}\)

(4) \(\frac{2\lambda g}B\) 

1 Answer

+1 vote
by (42.1k points)
selected by
 
Best answer

Correct option is (1) \(\frac{\lambda g}B\) 

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.

...