You are provided with a coil of wire, a bar magnet and a sensitive ammeter. Outline an experiment to verify Lenz's law.

A bar magnet is placed inside a non-uniform magnetic field. It experiences

Direction. In the following questions, a statement of assertion is followed by a statement of reason. While answering a question, you are required to choose the correct are out of the given four responses and mark it as (A). If both assertion and reason are true and reason is the correct explanation of the assertion, (B) if both assertion and reason are true but reason is not correct explanation of the assertion. (C) if assertion is true, but reason if false, (D) if both assertion and reason are false Assertion : When a bar magnet falls freely along the axis of a solenoid held vertically, its acceleration is less than the acceleration due to gravity Reason: The falling magnet induces current in the solenoid and according to Lenz's law, the induced current opposes the falling motion of the magnet

You are repeating the Hershey-Chase experiment and are provided with two istotopes ^32p and ^15N (in place of ^35S in the original experiment). How does you expect your results to be different?

A small retangular coil ABCD contains 140 turns of wire. The sides AB and BC of the coil are of length 4.5 and 2.8 cm respectively, as shown in the figure The coil is held between the poles of a large magnet so that the coil can rotate about an axis thorugh its centre. The magnet produces a uniform magnetic field of flux density B between its poles. When the current in the coil is 170 mA, the maximum torque produced in the coil is 2.1 xx 10^-3 N m . Use your answer to show that the magnetic flux density B between the poles of the magnet is 70 mT.

A small retangular coil ABCD contains 140 turns of wire. The sides AB and BC of the coil are of length 4.5 and 2.8 cm respectively, as shown in the figure The coil is held between the poles of a large magnet so that the coil can rotate about an axis thorugh its centre. The magnet produces a uniform magnetic field of flux density B between its poles. When the current in the coil is 170 mA, the maximum torque produced in the coil is 2.1 xx 10^-3 N m . For the coil in the position shown in the figure. calculate the magnitude of the force on (i) side AB of the coil and (ii) side BC of the coil.

A coil and a bar magnet move with the same velocity. What will be induced e.m.f. in the coil?

A cylindrical bar magnet is kept along the axis of a circular coil and near it as shown in the figure. Will there by an y iduced e.m.f. at the terminal of the coil, when the magnet is rotated about an axis perpendicular to the length of the magnet?