## Draw the charges (color coded), E field lines and Potential distribution on the z = 0 plane. (Positions of the charges can be taken of your choice.) (Make proper color mapping for each charges, field lines.)

A grounded sphere of 2 mm radius is placed in the centre of a 10mm x 10mm x 10mm box. 5 point charges, -2C, -1C, 1C, 2C, 3C are placed at random positions on the z = 0 plane in the box (outside the sphere). Draw the charges (color coded), E field lines and Potential distribution on the z = 0 plane. (Positions of the charges can be taken of your choice.) (Make proper color mapping for each charges, field lines.)

### determine an approximate value for the average magnitude of the magnetic field in which the electron resides.

You have a new summer job with NASA and are working on astronomical observations using electromagnetic radiation that is not in the visible range. Your supervisor has explained 21­cm radiation….

### What advice do you give the attorney?

You are hired as an expert witness by the attorney representing a doctor. The doctor is being sued by a patient who claimed radiation damage from the doctor’s x-ray machine…..

### determine the percentage of the total molar specific heat that is attributed to free electrons in gold.

The Dulong–Petit law states that the molar specific heat of solids is 3R at higher temperatures, where R is the gas constant. For metals, this law is obeyed at room….