Magnetic field due to currentHard
Question
A wire carrying a current I is bent into the shape of an exponential spiral, r = eθ, form θ = 0 to θ = 2π as shown in figure. To complete a loop, the ends of the spiral are connected by a straight wire along the x-axis. Find the magnitude of B at the origin.
Options
A.
[1-e-2π]
[1-e-2π]B.
√2[1-e-2π]
√2[1-e-2π]C.
[1-e-2π]
[1-e-2π]D.
[1-e-2π]
[1-e-2π]More Magnetic field due to current Questions
A long straight metal rod has a very long hole of radius ′a′ drilled parallel to the rod axis as shown in th...A rectangular coil 20 cm × 20cm, has 100 turns and carries a current of 1A. It is placed in a uniform magnetic fiel...A coil having N turns is wound tightly in the form of a sprial with inner and outer radii a and b respectively. When a c...Due to the flow of current in a circular loop of radius R, the magnetic field produced at the centre of the loop is B. T...A bar magnet A of magnetic moment MA is found to oscillate at a frequency twice that of magnet B of magnetic moment MB w...