Q. 17

# A current carrying loop consists of 3 identical quarter circles of radius R, lying in the positive quadrants of the x-y, y-z and z-x planes with their centres at the origin, joined together. Find the direction and magnitude of B at the origin.

Answer :

Current i=17A

As all the segments are quarter circles, the angle made at the center is going to be π/2

Magnetic field due to segment in x-y plane is;

Similarly, because of y-z

Similarly, because of z-x

So, the resultant is going to be,

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PREVIOUSTwo long wires carrying current I1 and I2 are arranged as shown in Fig. 4.1. The one carrying current I1 is along is the x-axis. The other carrying current I2 is along a line parallel to the y-axis given by x = 0 and z = d. Find the force exerted at O2 because of the wire along the x-axis.NEXTA charged particle of charge e and mass m is moving in an electric field E and magnetic field B. Construct dimensionless quantities and quantities of dimension [T ]–1.

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