Ask Questions, Get Answers

Want to ask us a question? Click here
Browse Questions
0 votes

A rectangular loop carrying a current is situated near a long straight wire as shown. If a current $i$ now starts flowing through the wire, the loop will


$\begin {array} {1 1} (a)\;Move \: away \: from\: the\: wire & \quad (b)\;Move\: towards\: the\: wire \\ (c)\;Rotate\: about \: an \: axis\: parallel\: to\: the\: wire & \quad (d)\;Remain \: stationary \end {array}$


Can you answer this question?

1 Answer

0 votes
For the loop, using Lenz’s Law, the force on the part which is nearer, due to the current in the long wire is attraction and force on the part which is farther is repulsion.
F (atttaction) > F(repulsion)
hence loop moves towards the wire
Ans : (b)


answered Feb 23, 2014 by thanvigandhi_1
edited Sep 16, 2014 by thagee.vedartham

Related questions

Ask Question
student study plans
JEE MAIN, CBSE, AIPMT Mobile and Tablet App
The ultimate mobile app to help you crack your examinations
Get the Android App