Brain Blitz (Round 2)

Which of the following is NOT a type of transistor?

• NPN
• PNP
• FET
• JFET

What is the unit of capacitance?

• Henry
• Farad
• Ohm
• Watt

What is the name of the phenomenon when light bends as it passes through a medium?

• Reflection
• Refraction
• Diffraction
• Diffraction

Which of the following is a measure of a radio signal's strength?

• Frequency
• Wavelength
• Amplitude
• Phase

What is the unit of frequency?

• Hertz
• Watt
• Volt
• Ohm

Which of the following is a type of diode that emits light when a current flows through it?

• Zener diode
• Schottky diode
• Light-emitting diode (LED)
• Varactor diode

What is the name of the circuit that amplifies a signal and then feeds it back to the input in phase?

• Feedback amplifier
• Oscillator
• Comparator
• Schmitt trigger

Which of the following is a common modulation scheme used in radio communications?

• Amplitude modulation (AM)
• All of the above
• Frequency modulation (FM)
• Phase modulation (PM)

Which of the following is a measure of the energy stored in an inductor?

• Voltage
• Current
• Impedance
• Inductance

What is the name of the circuit that converts analog signals to digital signals?

• Modulator
• Demodulator
• Analog-to-digital converter (ADC)
• Digital-to-analog converter (DAC)