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
109 views
in Physics by (93.7k points)
closed by
If a particle of charge `10^(-12)` coulomb moving along the`hat(x)`-direction with a velocity `10^(5)m//s` experiences a force of `10^(-10)` newton in `hat(y)`-direction due to magnetic field. Then the minimum magnetic field is
A. `6.25xx10^(3)` tesla in `hat(z)`-direction
B. `10^(-15)` tesla in `hat(z)`-direction
C. `6.25xx10^(-3)` tesla in `hat(z)` direction
D. `10^(-3)` tesla in `hat(z)`-direction

1 Answer

0 votes
by (93.9k points)
selected by
 
Best answer
Correct Answer - D
`F=qvB sin thetaimpliesB=(f)/(qvsin theta)`
`B_(min)=(F)/(qv)` (when `theta=90^(@)`)
`:. B_(min)=(F)/(qv)=(10^(-10))/(10^(-12)xx10^(5))=10^(-3)tesla`
in `hat(z)`-direction.

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

...