Home
Class 12
PHYSICS
Same current I is flowing in three infin...

Same current I is flowing in three infinitely long wires along x, y and z directions. What is the magnetic field at point `(0, 0, -a)`?

A

`(mu_(0)i)/(2pia)(hatj-hati)`

B

`(mu_(0)i)/(2pia)(hati+hatj)`

C

`(mu_(0)i)/(2pia)(hati-hatj)`

D

`(mu_(0)i)/(2pia)(hati + hatj +hatk)`

Text Solution

Verified by Experts

The correct Answer is:
A
`oversetrarr(B) = oversetrarr(B)_(1)+oversetrarr(B)_(2)`
`oversetrarr(B) = (mu_(0))/(4pi) (2I)/(a) hatj + (mu_(0))/(4pi) (-hati)`
`=(mu_(0))/(4pi) (2I)/(a) (-hati +hatj)`
.
Promotional Banner

Similar Questions

Explore conceptually related problems

Same current i is flowing in the three infinitely long wires along positive x-,y- and z-directions. The magnetic filed at a point (0,0,-a) would be

A current of I ampere is flowing through each of the bent wires as shown the magnitude and direction of magnetic field at O is

A direct current l flow along the length of an infinitely long striaght thin walled pipe then the magnetic field is

A current of 10A is established in a long wire along the positive z-axis. Find the magnetic field (vec B) at the point (1m , 0 , 0).

A current I=IA flowing through an infinite long wire A_1 divides between two infinite long wires A_2 and A_3 at junction B. The magnitude of the magnetic field at point O due to current through wires is :