What kind of device changes its resistance with a corresponding temperature change?

A reed switch uses which effect of electricity?

Which component is appropriate to be used to stop heat damage to a relay?

Which of the following is corrct?

Which of the following is correct?

(2 correct answers)

If a diode is forward biased then it will pass current from...

An invertor...

What kin of electronic device combines two zener diodes and will allow current flow in either direction once it reaches a certain value?

NPN and PNP are types of?

What kind of device reduces its resistance when light falls on it, allowing current to flow?

What kind of device converts light energy into electrical energy and is used in burglar alarms?

What kind of semi-conductor device acts like a thyristor but allows current to flow in either direction when it is gated?

If three capacitors are connected in parallel and are rated at 34µF, 24µF, and 17µF. Calculate the total capacitor of the circuit.

If two capacitors are connected in series and are both rated at 10µF. Calculate the total capacitance of the circuit.

What kind of rectification circuit would produce the output here?

What kind of rectification circuit would produce the output here?

An electronic device that emits red, green or yellow when a current of about 10mA flows through it is a:

What device acts as an amplifier or a switch?

What device converts ac. to d.c?