D&T Electronics - Transistor

Transistors act like automatic _______________ .

• electrons

• switches

• batteries

• current

Name the component

• Light Emitting Diode

• Light Emitting Device

• Light Dependent Resistor

• Light Dependent Range

Name Terminal C

• Common

• Collector

• Cathode

• Current

Name Terminal B

• Base

• Booster

• Bin

• Bus

Name Terminal E

• Emission

• Energy

• Exit

• Emitter

The street lights use electronic control system that switches the lights on when the surrounding is dark. What is the input sensor of the control system?

• Thermistor

• Light Emitting Diode (LED)

• Light Dependent Resistor (LDR)

• Amplifier

How does the transistor turn on?

• By applying a current to the collector terminal.

• By connecting the emitter directly to the ground.

• By supplying sufficient voltage to the base terminal.

• By increasing resistance across the collector-emitter path.