A cell is connected between two points of a uniformly thick circular conductor. The magnetic field at the centre of the loop will be [MP PMT 1994]

\[\frac{{{\mu }_{0}}}{2a}({{i}_{1}}-{{i}_{2}})\]

\[\frac{{{\mu }_{0}}}{2a}({{i}_{1}}+{{i}_{2}})\]

\[\frac{{{\mu }_{0}}}{a}({{i}_{1}}+{{i}_{2}})\] (Here \[{{i}_{1}}\] and \[{{i}_{2}}\] are the currents flowing in the two parts of the circular conductor of radius ?a? and \[{{\mu }_{0}}\] has the usual meaning)

A cell is connected between two points of a uniformly thick circular c

1.	A cell is connected between two points of a uniformly thick circular conductor. The magnetic field at the centre of the loop will be [MP PMT 1994]
A.	Zero
B.	\[\frac{{{\mu }_{0}}}{2a}({{i}_{1}}-{{i}_{2}})\]
C.	\[\frac{{{\mu }_{0}}}{2a}({{i}_{1}}+{{i}_{2}})\]
D.	\[\frac{{{\mu }_{0}}}{a}({{i}_{1}}+{{i}_{2}})\] (Here \[{{i}_{1}}\] and \[{{i}_{2}}\] are the currents flowing in the two parts of the circular conductor of radius ?a? and \[{{\mu }_{0}}\] has the usual meaning)
Answer» B. \[\frac{{{\mu }_{0}}}{2a}({{i}_{1}}-{{i}_{2}})\]

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A cell is connected between two points of a uniformly thick circular conductor. The magnetic field at the centre of the loop will be [MP PMT 1994]

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