Electronic Components (Leaving Cert Engineering): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
ShowHide
Practise the questions
12 questions from this quiz
What material separates the two conductive plates in a capacitor?
What material separates the two conductive plates in a capacitor?
Dielectric
What type of current do capacitors block whilst allowing the other type to pass through?
What type of current do capacitors block whilst allowing the other type to pass through?
Block DC, allow AC
Which law states that current is directly proportional to voltage and inversely to resistance?
Which law states that current is directly proportional to voltage and inversely to resistance?
Ohm's Law
What function do resistors perform when they distribute input voltage across multiple components?
What function do resistors perform when they distribute input voltage across multiple components?
Voltage division
What type of junction do diodes use to allow current flow in only one direction?
What type of junction do diodes use to allow current flow in only one direction?
PN junction
What is the process called when diodes convert alternating current to direct current?
What is the process called when diodes convert alternating current to direct current?
Rectification
What do Light-Emitting Diodes (LEDs) produce when current flows through them?
What do Light-Emitting Diodes (LEDs) produce when current flows through them?
Light
What are the three layers of a bipolar junction transistor?
What are the three layers of a bipolar junction transistor?
Emitter, base, collector
In a transistor, what does a small current applied to the base control?
In a transistor, what does a small current applied to the base control?
Large current between collector-emitter
Where do inductors store energy when current flows through them?
Where do inductors store energy when current flows through them?
In a magnetic field
What type of frequencies are inductors particularly effective at blocking?
What type of frequencies are inductors particularly effective at blocking?
High-frequency
What type of isolation do relays provide between control and power circuits?
What type of isolation do relays provide between control and power circuits?
Electrical isolation