Electricity Quiz

What is the primary component of the nucleus of an atom?

• Electrons

• Neutrons

• Protons

• Photons

What is the relationship between resistance and resistivity?

• R = ρV

• R = ρ/A

• R ∞ ρ

• R ∞ 1/ρ

What happens to the resistance of a conductor as temperature increases?

• It increases

• It remains constant

• It decreases

• It fluctuates

What is the formula for electric current?

• I = Q/V

• I = V*R

• I = R/V

• I = V/R

What is the unit of electric current?

• Volt

• Ohm

• Ampere

• Coulomb

What is the forbidden gap in the context of energy bands?

• Temperature coefficient

• Energy level of electrons

• Energy difference between bands

• Resistance of materials

How many electrons correspond to 1 Ampere of current?

• 9.1 x 10^-31 e-/s

• 3.2 x 10^19 e-/s

• 1.6 x 10^-19 e-/s

• 6.24 x 10^18 e-/s

What is the effect of temperature on the resistance of semiconductors?

• It doubles resistance

• It has no effect

• It decreases resistance

• It increases resistance

What is the formula for calculating resistance?

• R = ρℓ/A

• R = V/I

• R = Q/t

• R = I/V

What is the potential difference also known as?

• Voltage

• Current

• Resistance

• Power