In the figure. The straight wire AB is fixed, while the loop is free to move under the influence of the electric currents flowing in them. In which direction doe the loop begin to move? Give reason for your answer.

How will you induce lateral branching in a plant which normally does not produce them?Give reason in support of your answer.

A door is hinged at one end and is free to rotate about a vertical axis. (show in the figure) Does its weight cause any torque about this axis ? Give reasons for your answer.

A current through a wire PQ is increasing. In which direction the induced current flows in the closed loop?

Two wires of equal lengths are bent in the form of two loops. One of the loops is a square shaped whreas the other loop is circular. These are suspended in a uniform magnetic field and the same current is passed through them. Which loop will experience greater torque? give reasons.

A current of 10 A flow around a closed path in a circuit which is in the horizontal plane as shown in the figure. The circuit consists of eight alternative arcs of radii r_(1)=0.08m and r_(2)=0.12m . Each subtends the same angle at the centre. An infinitely long straight wire carrying a current of 10 A is passing throgh the entre of the above circuit vertically with the direction of the current being into the plane of the circuit. What is the force acting on the wire at the centre due to the current in the circuit? What is the force acting on the arc AC and the straight segment CD due to the current at the centre?

An electron moves along the line AB, which lies in the same lane as a circular loop of conducting wires. What will be the direction of the current induced in the loop, if any?

A square-shpaed current carrying loop MNOP is placed near a straight long current carrying wire AB as shown in the figure. The wire and the loop lie in the same plane. If the loop experineces a net force F towards the wire. Find the magnitude of the force on the side 'NO' of the loop.

Fig. below shows planer loops of different shapes moving out or into a region of magnetic field, which is directed normal to the plane of the loop and away from the reader. Determine the direction of induced current. in each loop using Lenz's law.