Figure (a)shows two wires, each carrying a current. Wire 1 consists of a circular are of radius R and two radial lengthsit carries current i_(t)=20A in the direction indicated. Wire 2 is long and straigth itcarries a current i_(2) that can be varried and it is at distance R//2 from the centre of the are. The net magnetic field vec(B) due to the current is measuredat the center of curvature of the areFigure (b) is a plot of the component of vec(B) in the direction prependicular to the figure as a function of current i_(2) What is the angle subtendedby the arc ?

Figure (a)shows two wires, each carrying a current. Wire 1 consists of

1.	Figure (a)shows two wires, each carrying a current. Wire 1 consists of a circular are of radius R and two radial lengthsit carries current i_(t)=20A in the direction indicated. Wire 2 is long and straigth itcarries a current i_(2) that can be varried and it is at distance R//2 from the centre of the are. The net magnetic field vec(B) due to the current is measuredat the center of curvature of the areFigure (b) is a plot of the component of vec(B) in the direction prependicular to the figure as a function of current i_(2) What is the angle subtendedby the arc ?
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