A square wire loop with 2m sides is perpendicular to uniform magnetic field, with half the area of the loop in the field as shown in the figure. The loop has resistance 0.5ohm. If the magnitude of the field varies with time according to 0.04-3*t, with B in teslas and t in seconds; what are  the net emf in the circuit?  the direction of the (net) current around the loop?

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Magnetic Force

A magnetic force arises when a charged particle or a current-carrying conductor is placed in a magnetic field. It is created because of the movement of the charged particles.