Basics
What is the SI unit of force?
Newton
Which of the following is a vector quantity?
Acceleration
Which type of semiconductor has holes as the majority charge carriers?
p-type
Which of the following quantities is conserved in an elastic collision?
Kinetic energy and Momentum
What is the most commonly used material in semiconductor devices?
Silicon
Which law states that the total pressure of a mixture of gases is the sum of the partial pressures?
Dalton’s Law
What happens to the pressure of a gas if its volume is halved at constant temperature?
It doubles
What do we call a semiconductor with no impurities added?
Intrinsic
The efficiency of a heat engine is defined as:
Heat inputWork /output×100%
Semiconductors are essential components of which portable device?
Smartphone
Semiconductors conduct electricity:
Better than insulators but worse than conductors
What is the speed of light in a vacuum?
3×108 m/s
Which fundamental force is responsible for keeping the planets in orbit around the Sun?
Gravitational force
The unit of electric charge is:
Coulomb
Integrated circuits made of semiconductors are heavily used in:
Computers
At absolute zero temperature, an intrinsic semiconductor behaves as:
A perfect insulator
Which semiconductor device allows current to flow in only one direction?
Diode
Which color of light has the highest frequency?
Violet
The work done by a force is zero when:
Force and displacement are perpendicular
Solar cells generate electricity using which semiconductor phenomenon?
Photovoltaic effect
At absolute zero temperature, an intrinsic semiconductor behaves as:
A perfect insulator
A transistor typically has how many terminals?
Three
In which type of semiconductor are electrons the majority charge carriers?
n-type
The resistance of a conductor is inversely proportional to:
Area of cross-section
Which device uses semiconductors to convert alternating current (AC) to direct current (DC)?
Rectifier