Home
Class 12
PHYSICS
An equilateral triangle is made by unifo...

An equilateral triangle is made by uniform wires AB, BC, CA. A current I enters at A and leaves from the mid point of BC. If the lengths of each side of the triangle is L, the magnetic field B at the centroid O of the triangle is

A

`(mu_(0))/(4pi) ((4I)/(L))`

B

`(mu_(0))/(2pi) ((4I)/(L))`

C

`(mu_(0))/(4pi) ((2I)/(L))`

D

Zero

Text Solution

Verified by Experts

The correct Answer is:
D
Magnetic field due to AB and BD is outside to the plane = `B_(1)`
Magnetic field due to AC and CD is inside to plane = `B_(2)`
`therefore vecB_(1) + vecB_(2) = 0`
Promotional Banner

Similar Questions

Explore conceptually related problems

A current of 2A is flowing in the sides of an equilateral triangle of side 9 cm. The magnetic field at the centroid of the triangle is

A current I si established in a closed loop of an triangle ABC of side l. find the magnetic field at the centroid O

In Delta ABC, M is the mid point of BC. Length of AM is 9, N is a point on AM such that MN=1 . What is the distance of N from the centroid of the triangle?

An equilateral triangle of side 10cm carries a current of 3A. Find the magnetic field at centroid of triangle.

The current I ampere is flowing in an equilateral triangle of side a the magnetic field induction at the centroid will be

The wire ABC shown in figure forms an equilateral triangle. Find the magnetic field B at the centre O of the triangle assuming the wire to be uniform.

Three particles each of mass m are kept at the vertices of an equilateral triangle of side L . What is the gravitational potential at the centroid of the triangle?