Day 1: Electricity Basics

Charge is a fundamental Property of -

• Electron

• Proton

• Neutron

• Both Electron and Proton

Which of the below is the use of resistor?

• Limiting Current

• Limiting Efficiency

• Generating Electricity

• None

Which property creates a force on one another between elementary particles?

• Charge

• Mass

• Spin

• Velocity

What is the direction of the electrostatic force between two positively charged particles?

• Attractive

• Repulsive

• Neutral

What is the value of the constant "k" in Coulomb's law?

• 8.854×10-12 C²/Nm²

• 9×10⁹ Nm²/C²

• 1.6×10-19 C

• 1.6×10-12 C

What is the term used to describe the rule that states the total net charge of any system is constant?

• Coulomb's law

• Quantization of charge

• Conservation of charge

• Permittivity of free space

The magnitude of the electrostatic force between two point charges is directly proportional to:

• The product of their masses

• The distance between them

• The square of the distance between them

• The product of their charges

When a glass rod is rubbed with silk, the glass rod acquires a positive charge. What type of charge does the silk acquire?

• Positive charge

• Negative charge

• Neutral charge

• It remains unchanged

Coulomb's law fails to explain the stability of the nucleus due to:

• The presence of neutrons in the nucleus

• The presence of electrons in the nucleus

• The repulsion between protons

• The strong nuclear force

What is the relationship between the electric force (F) and the distance (r) between two point charges, if the distance is doubled?

• F remains the same

• F becomes half

• F becomes one-fourth

• F becomes double