Electric Charge...

Which is the best conductor of electricity?

Two positive point charges $$q_1$$ and $$q_2$$ are kept at the distance d. If the distance between them is triple. Calculate by which factor new electrostatic force is decreased.

What would happen to the electrostatic force between a pair of charged particles if both charges were tripled and the distance between them were also tripled?

Two point charges with charges  $$3$$ micro coulombs and $$4$$ micro coulombs are separated by $$2$$ cm.The value of the force between them?

Which of the following materials has a negative temperature coefficient of resistance?

When we wear nylon dresses during winter then there is ______ current which gets produced due to contact with out body. Fill in the Blank.

A closed switch has a resistance of :

When we rub our comb with hair and then take near to the paper pieces, all pieces get stuck to the comb. This happens due tyo which phenomena?

Identify which of the following diagrams best represents the electric field lines around a positive charge?

A test charge q is located 1 meter from a much larger and stationary charge Q. While at this location, the test charge q, experiences a force of F from the stationary charge Q. The test charge is then moved to a new location 2 meters from Q. What force will the test charge q experience from the stationary charge Q at the new location?