CIRCUIT RACE ROUND 1

What does DC stand for in electronics?

• Dynamic Current

• Direct Current

• Digital Circuit

• Diode Capacitor

Which type of semiconductor material has excess electrons, giving it a negative charge?

• N-type

• P-type

• Silicon-type

• Germanium-type

In a transistor, what are the three layers called?

• Collector, Emitter, Resistor

• Source, Drain, Gate

• P-type, N-type, Junction

• Base, Emitter, Collector

What is the primary function of a diode in a circuit?

• To amplify signals

• To control the flow of current in one direction

• To regulate voltage

• To store electrical energy

What is the purpose of a crystal oscillator in electronic circuits?

• To generate high-frequency signals

• To amplify audio signals

• To modulate radio frequency signals

• To stabilize the frequency of a clock signal

Which of the following is an application of Zener diode.

• Rectifier

• Voltage regulator

• Amplifier

• Oscillator

If doubling the voltage across the resistor doubles the current through the resistor then:

• the resistor value decreased

• the resistor value did not change

• the resistor value increased

• it is impossible to determine the change in the resistor

8051 microcontroller is a:

• 16 bit microprocessor

• 8bit microcontroller

• 16 bit microcontroller

• 8bit microprocessor

What does “555” in a 555 timer IC represent

• 5ohm,5ohm,5ohm Resistors

• 5F,5F,5F capacitors

• 5kohm,5kohm,5kohm Resistors

• 5uF,5uF,5uF Capacitors

An electron in the conduction band:

• has higher energy than the electron in the valence band

• has lower energy than the electron in the valence band

• looses its charge easily

• jumps to the top of the crystal