Question

The figure shows a stationary conducting loop adjacent to a vertical current-carrying wire. For which of the following conditions will a counter-clockwise induced current circulate in the stationary loop? Current-carrying wire Stationary conducting loop Counter- clockwise induced current The current in the vertical wire flows downward and its value is decreasing. The current in the vertical wire flows downward and its value is constant. The current in the vertical wire flows downward and its value is increasing. The current in the vertical wire flows upward and its value is decreasing. The current in the vertical wire flows upward and its value is constant.

Answer 1

According to lenz law, induced current must be in a direction such that it oppose the change. So, if current flowing in vertical wire downward and decreasing then to oppose it magnetic field must be point up to page thus induced current is in counter clockwise direction.

So, 1st option is correct.(The current in vertical wire flows downward and its value is decreasing).