logo

Ask Questions, Get Answers

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

Two identical coils are placed coaxially. They carry equal currents in the same direction. Then

$\begin {array} {1 1} (a)\;On\: their\: axis \: there \: are\: three\: points\: where\: the\: net\: field\: is\: zero \\ (b)\;On\: their\: axis \: there \: are\: two\: points\: where\: the\: net\: field\: is\: zero \\ (c)\;On\: their\: axis \: there \: is\: no\: points\: where\: the\: net\: field\: is\: zero \\ (d)\;On \: moving\: from\: centre\: of\: one\: coil \: to \: the \: centre\: of\: another, \: the \: field\; first\: increases\: and\: then\: decreases \end {array}$

 

Can you answer this question?
 
 

1 Answer

0 votes
The fields due to both of them points in the same direction at every point of the axis and hence the resultant is never zero
Ans : (c)
answered Feb 23, 2014 by thanvigandhi_1
 

Related questions

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