General Physics 2ND SEM (Part I)

Question 1

Which of the following is an example of an Insulator?

Answer 1

Diamond

Question 2

At low temperature, lead behaves as a :

Answer 2

Super Conductor

Question 3

As the temperature increases, the electrical resistance?

Answer 3

Increases for conductors but decreases for semiconductors

Question 4

What is the poor conductor of electricity?

Answer 4

Carbon

Question 5

What is the best conductor of electricity?

Answer 5

Salt water

Question 6

What is not a good conductor of electricity?

Answer 6

Bromine

Question 7

A solid spherical conductor is placed in an external electric field. It is given a charge q. The charge q

Answer 7

Is distributed non uniformly on the surface of the sphere

Question 8

What material is a good conductor of electricity?

Answer 8

Silver

Question 9

What material is an electric conductor

Answer 9

Human Body

Question 10

If both charges are positive/negative, they will ____________

Answer 10

repel each other.

Question 11

If they have different charges, they will ______________

Answer 11

attract each other

Question 12

Who invented Coulumb’s Law?

Answer 12

Charles-Augustin de Coulomb

Question 13

(born June 14, 1736, Angoulême, France—died August 23, 1806, Paris), French physicist best known for the formulation of Coulomb’s law, which states that the force between two electrical charges is proportional to the product of the charges and inversely proportional to the square of the distance between them.

Answer 13

Charles-Augustin de Coulomb

Question 14

Predicts what is going to be the force of attraction or repulsion between two forces.

Answer 14

Coulomb’s Law