- From the above figures which one corresponds to a typical semiconductor.

Depending on the magnetic property, the materials are classified in to diamagnetic, paramagnetic and ferro magnetic. a) The behaviour of magnetic field lines near a magnetic substance is shown in the figure. Which material corresponds to the figure.

The figure shows some of the electric field lines corresponding to an electric field. If E is the intensity of electric field and V is the potential

Consider the trigonometric expression sin (2A)/(1-cos 2A) and sin(2A)/(1+cos 2A) . Of the above expressions which one is tan A and which one is cot A?

The following diagram shows the alignment of magnetic moments for some magnetic properties. Which figure corresponds to anti-ferromagnetism? Justify your answer.