Physics-
General
Easy
Question
A long straight wire, carrying current I, is bent at its midpoint to form an angle of 
. Magnetic field at point P, distance R from point of bending is equal to
The correct answer is:
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The spring block system lies on a smooth horizontal surface. The free end of the spring is being pulled towards right with constant speed v0 = 2m/s. At t = 0 sec, the spring of constant k = 100 N/cm is unstretched and the block has a speed 1 m/s to left. The maximum extension of the spring is
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A weightless rod of length 
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In the given figure and magnetic field at will be
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