Download the app


Two like magnetic poles of strength 10 and 40 SI units are separated by a distance 30 cm. The intensity of magnetic field is zero on the line joining them 

Remember concepts with our Masterclasses.

80k Users
60 mins Expert Faculty Ask Questions
At a point 10 cm from the stronger pole
At a point 20 cm from the stronger pole
At the mid-point
At infinity

Ready to Test Your Skills?

Check Your Performance Today with our Free Mock Tests used by Toppers!

detailed solution

Correct option is B

Suppose magnetic field is zero at point P which lies at a distance x from 10 units pole. Hence, at Pμ04π.10x2=μ04π.4030-x2⇒x=10 cmSo, from stronger pole distance is 20 cm.

Talk to our academic expert!


Are you a Sri Chaitanya student?


Create Your Own Test
Your Topic, Your Difficulty, Your Pace

Similar Questions

phone icon
whats app icon