Question
Draw the electric field lines due to a uniformly charged thin spherical shell when charge on the shell is (a) positive and (b) negative.

Answer

The electric field lines are shown in the figure. For a positively charged shell, the field lines are directed in radially outward direction and for negatively charged shell, these are directed in radially inward direction.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Draw a plot of potential energy of a pair of nucleons as a function of their separations. Mark the regions where the nuclear force is (i) attractive and (ii) repulsive. Write any two characteristic features of nuclear forces.
Use the mirror equation to show that.
  1. An object placed between f and 2f of a concave mirror produces a real image beyond 2f.
  2. A convex mirror always produces a virtual image independent of the location of the object.
  3. An object placed between the pole and focus of a concave mirror produces a virtual and enlarged image.
How many time constants will elapse before the power delivered by a battery drops to half of its maximum value in an RC circuit?
A 12.5 eV electron beam is used to bombard gaseous hydrogen at room temperature. Upto which energy level the hydrogen atoms would be excited? Calculate the wavelengths of the first member of Lyman and first member of Balmer series.
Find the radius of gyration of a circular ring of radius r about a line perpendicular to the plane of the ring and passing through one of its particles.
Consider the situation of the previous problem. Assume that the temperature of the water at the bottom of the lake remains constant at $4^\circ C$ as the ice forms on the surface (the heat required to maintain the temperature of the bottom layer may come from the bed of the lake). The depth of the lake is 1.0m. Show that the thickness of the ice formed attains a steady state maximum value. Find this value. The thermal conductivity of water $=0.50\text{Wm}^{-1}{^{\circ}}\text{C}^{-1}.$ Take other relevant data from the previous problem.
  1. Which segment of electromagnetic waves has highest frequency? How are these waves produced ? Give one use of these waves.
  2. Which em waves lie near the high-frequency end of visible part of em spectrum? Give its one use. In what way this component of light has harmful effects on humans?

In the figure given below, a bar magnet moving towards the right or left induces an emf in the coils (1) and (2). Find, giving reason, the directions of the induced currents through the resistors AB and CD when the magnet is moving (a) towards the right, and (b) towards the left.
Can X-rays be used for photoelectric effect?
You are given a 2μF parallel plate capacitor. How would you establish an instantaneous displacement current of 1mA in the space between its plates?