| Quiz V10.0 Transistor/FET beginner questions.. Credits to: Roman Black Attempt All 10 Questions.....Unanswered questions will be considered Incorrect Use the 'Score' button to show your Score.! You can re-attempt any incorrectly answered Questions and re-check your Score! | |
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| Q1: An NPN transistor has; arrow pointing up arrow pointing down arrow pointing out from the centre arrow pointing in towards the centre | |||||||||||||||||||||||||||
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| Q2: A bipolar transistor can be better than a FET because; its smaller it can handle more current its 0.6v Vbe drop can be very useful a bipolar transistor is never better than a FET! | ||||||||||||||||||||||||
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| Q3: A FET can be better than a transistor because generally; it can switch more current it can switch faster it will not get as hot for a given current all of the above | |||||||||||||||||||||
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| Q4: Which of these is NOT true; a FET can be driven directly from a logic level IC pin a bipolar NPN can be turned on well from a 1v signal all transistors and FETs have 3 legs a FET can be used to switch 600 volts | ||||||||||||||||||
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| Q5: Which is the correct pinout for a "typical" TO220 NPN transistor;
(viewed from the front) BCE GDS ECB CBE | |||||||||||||||
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| Q6: A FET with high gate capacitance can be used for; a 200kHz switch mode power supply a 10kHz PWM motor driver an RF amplifier none of the above | ||||||||||||
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| Q7: Driving a relay from a logic level pin, using a NPN
transistor does NOT need; a diode across the relay coil a diode across the NPN transistor a resistor in series with the NPN base all of the above | |||||||||
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| Q8: Driving a 12v 100mA relay using a typical 500mA
small NPN transistor from a logic level pin, the base
resistor should be; nothing, it is not needed 150 ohm 1.5k 150k | ||||||
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| Q9: Driving a 12v 500mA relay using a typical TO220 10A
power NFET from a logic level pin, you would NOT connect
the FET pin; Source to logic pin Source to ground Gate to logic pin Drain to relay | |||
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| Q10: Driving a 12v 500mA relay using a typical TO220 10A
power NFET from a logic level pin, and the logic level
is HI (5v) you would expect the voltage on the FET Drain
pin to be approximately; 0v 100mV 1v 5v | |
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