Electrostatics of Conductors

Two conducting spheres of unequal radii are given charge such that they have the same charge density. If they are now brought in contact,

Can electric field at some point be zero though electric potential is not zero? Give example.

You are travelling in a car, lighting is expected, what should you do about your safety?

The excess charge given to a conductor reside always on its outer surface? Why?

A charge $Q$ is a given to a conducting sphere of diameter $d$. What is the value of electric field inside the sphere?

A solid conducting sphere of radius $a$ is surrounded by a thin uncharged concentric conducting shell of radius $2a$. A point charge $q$ is placed at a distance $4a$ from common centre of conducting sphere and shell. The inner sphere is then grounded.

Pick up the correct statement.

What is the term used for the tax imposed on imported goods?

Which mode of transport is most suitable for carrying heavy and bulky goods over long distances?

Which is the busiest port in the world?

Which port in India handles the highest volume of cargo traffic?

Under which head is 'Equity Share Capital' shown in a balance sheet?

What is the maximum pecuniary jurisdiction of the District Forum under the Consumer Protection Act, 1986?

Which of the following cities is part of the National Capital Region (NCR) of India?

Which communication network is characterized by a single central authority?

Which country is not a permanent member of the United Nations Security Council?

Which Chinese city is known as the first Special Economic Zone (SEZ)?

Which of the following subjects is included in the Concurrent List of the Indian Constitution?

In which type of organization is decision-making authority retained at the top level of management?

Which level of management directly oversees the work of non-managerial employees?

Who among the following is part of the top-level management?