electronic systems: discrete components

The positive leg of a diode is called...

• anode

• base

• cathode

• gate

The negative leg of a diode is called...

• anode

• base

• cathode

• gate

The formula for resistors in series is...

• $R=I\times V$

• $R=\frac{V}{I}$

• $R_T=R_1+R_2+R_3....$

• $\frac{1}{R_T}=\frac{1}{R_1}+\frac{1}{R_2}+\frac{1}{R_3}....$

Which is usually used in a bridge rectifier circuit?

• laser diode

• light emitting diode

• power diode

• signal diode

The unit used to measure resistance is....

• farad

• ohm

• volt

• watt

The unit used to measure capacitance is....

• farad

• ohm

• volt

• watt

Which can be used to protect a transistor from back emf?

• capacitor

• diode

• motor

• resistor

Which can be used to control the time constant of an RC circuit.

• bulb

• diode

• motor

• resistor

True or false

Polarized components can be placed any way around in a circuit.

• True

• False

True or false

All capacitors are polarised components

• True

• False