Questions
In fig. what is the magnetic field induction at point o
a
μ0i4πr
b
μ0i4r+μ0i2πr
c
μ0i4r+μ0i4πr
d
μ0i4r−μ0i4πr
detailed solution
Correct option is C
B at O will be due to the following portions :(i) vertical straight portion. This is zero.(ii) circular portion. This is given byBcircular =12μ0i2r=μ0i4r(iii) straight horizontal portion. This is given byBstraight =μ0i4πr∴ BTotal =μ0i4r+u0i4πrTalk to our academic expert!
Similar Questions
Four long insulated current carrying wires, cross each other as shown in the figure. If the separation between any pair of parallel wires is d, the magnetic induction at O is
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