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Electronics Engineering Questions
Total questions: 7115
How do I test a capacitor when I cannot remove it out of circuit?Popularity: 334
How does a solid state relay work?
Popularity: 117
What economical device - varistor - transistor etc can you use to supply power to a relay until the voltage drops to 10.5 volts?
Popularity: 107
Is it better to leave an electronic device on or to turn it on and off?
Popularity: 102
How does a dynamo work?
Popularity: 89
What is redundancy in an electronic system?
Popularity: 77
Who can you get Mediacom receiver master code?
Popularity: 75
What is the stiffness of a cantilever beam under a natural frequency?
Popularity: 69
How can you build an electronic controlled timer for a deer feeder?
Popularity: 67
How do you determine the value of the feedback capacitor connected between the emitter and collector of the output transistor in an FM transmitter?
Popularity: 63
What is 'CMOS'?
Popularity: 62
What is the approximate instantaneous voltage at 37 degrees on a 169 Vp sine wave?
Popularity: 58
A sine wave of 17 volts peak is equivalent to how many volts RMS?
Popularity: 58
How do you detect the presence of white noise from a receiver and produce the results on a LED?
Popularity: 56
Who invented the zener diode?
Popularity: 55
What is a diode and how does it work?
Popularity: 54
How do you convert 12 volts to 3 volts?
Popularity: 54
What are the three different types of grounds in electronic circuits?
Popularity: 53
Is it possible to display the result on a 7 segment LED display wirelessly to another 7 segment LED display a few metres away?
Popularity: 52
How can a relay circuit be used?
Popularity: 51
What is an Ampere-hour?
Popularity: 51
What does a dynamo do?
Popularity: 51
What is the most probable junction in transistor maintenance circuits and is it base or base and collector or emitter and collector?
Popularity: 51
How does a transistor work?
Popularity: 51
How do you calculate a gain in a three-transistor cascaded amplifier?
Popularity: 50
What is the difference between standard and virtual objects?
Popularity: 49
What is the conversion for rms voltage to peak to peak voltage?
Popularity: 49
Why is nanotechnology becoming popular?
Popularity: 49
What is differences between pld and mixed logic gatessuch as the 7400 7432 ic logic device name one pld device?
Popularity: 48
What is the procedure to connect two circuits without losing the output voltage of first circuit which is transfered to the second circuit?
Popularity: 48
How do you electronically cut down on the range that an AM of FM receiver receives a signal.?
Popularity: 48
How do you rewire a 220 volt motor back to run on 120 volts?
Popularity: 48
What would the electron shell of an insulator look like?
Popularity: 47
Are passive RFID tags read-write or write once only?
Popularity: 46
What is a switching power supply?
Popularity: 46
Why is the current in diodes only due to diffusion and not influenced by electric field of batteries?
Popularity: 45
What is a sensor?
Popularity: 45
What is the difference between analog computers and digital computers?
Popularity: 44
What are the technical specs of a Sony SA-W542 Superwoofer?
Popularity: 44
What is a relay circuit?
Popularity: 43
What is the frequency band alloted for a long-range FM transmitter?
Popularity: 42
What is the full form of RTS?
Popularity: 42
What is a multiplexer?
Popularity: 42
What is a parallel port?
Popularity: 41
In a 12 Volt battery each coulomb of electrons at the negative end of the battery has a potential energy of how many Joules?
Popularity: 41
How can you extend the range of baby monitors?
Popularity: 41
Advantages and disadvantages of digital signal over analog signal?
Popularity: 40
How would the shape of an electron shell affect the ability of the material to conduct electricity?
Popularity: 40
What is electronic and electrical engineering?
Popularity: 40
What does an actuator and pressure switch do?
Popularity: 40
What is the main difference between small transformers 50W and larger tranformers and what key specifications will normally decide the price for a tranformer.?
Popularity: 39
How do you drop the voltage of a dc motor to slow it down?
Popularity: 39
Define boost converter?
Popularity: 38
How a does a voltage tripler work?
Popularity: 38
What is staggered PRI?
Popularity: 37
What is an integrated circuit?
Popularity: 37
Is there a device that will enable or energize when a voltage range of 20V to 110V is applied that can be used to connect a shower fan to the dimmer switch and activate the fan when the light is on?
Popularity: 37
Can electricity make your head explode?
Popularity: 36
What is Miller's Theorem?
Popularity: 35
What circuit produces a high output when two inputs are unequal?
Popularity: 35
Why it is necessary to consider the code density when evaluating microprocessor based systems?
Popularity: 33
Why do amplifiers have a high input impedance?
Popularity: 33
What is a good electrical conductor when melted and is a good insulator in its solid state?
Popularity: 32
What is meaning of pnp?
Popularity: 31
Is a square wave an analog or digital wave?
Popularity: 31
How does the riddex electronic pest repeller work?
Popularity: 30
What is the difference between 1850 mAh and 2850 mAh in rechargeable batteries?
Popularity: 30
Is RFID part of IT?
Popularity: 30
What is an RC oscillator?
Popularity: 29
How do you light an LED?
Popularity: 29
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