Electronic Components module quiz: resistors, capacitors, diodes, LEDs and the bipolar transistor (O-Level Electronics) quiz

The first digit

The multiplier (number of zeros)

The tolerance

The power rating

$120\ \Omega$

$10\,000\ \Omega$

$1000\ \Omega$

$102\ \Omega$

$Q = CV^2$

$Q = C/V$

$Q = V/C$

$Q = CV$

$1.2\ \text{mC}$

$12\ \mu\text{C}$

$8.3\ \mu\text{C}$

$1200\ \text{C}$

$0\ \text{V}$

$0.7\ \text{V}$

$2.0\ \text{V}$

$12\ \text{V}$

It blocks all the current

It converts direct current to alternating current

It passes only the half-cycles of one polarity

It amplifies the signal

To make it brighter

To store charge

To reverse its polarity

To limit the current to a safe value

$300\ \Omega$

$500\ \Omega$

$200\ \Omega$

$700\ \Omega$

Anode, cathode and gate

Base, collector and emitter

Source, drain and gate

Input, process and output

A large base current is needed to allow a small collector current

The collector controls the base current

A small base current controls a much larger collector current

It blocks current in both directions

A fixed resistor

A capacitor

A diode

A variable resistor (potentiometer)

It conducts freely

It blocks the current

It emits light

It stores charge like a capacitor

It smooths the output towards a steadier direct voltage

It increases the alternating ripple

It blocks the direct current

It rectifies the second half-cycle

$200\ \mu\text{A}$

$2\ \text{mA}$

$20\ \text{mA}$

$0.2\ \mu\text{A}$