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Electronics Engineering
Electronics Engineering is a branch of engineering that deals with practical applications of electronic components, devices, systems, or equipment. Electronics are devices that operate on low voltage sources, as in electron tubes, transistors, integrated circuits, and printed circuit boards and use electricity as part of its driving force.
24,372 Questions
What are the advantages of SSB and DSB over AM?
advantage of SSB ic can save power..and also the bandwidth requirements
How can you draw a 4 bit full adder using 1 bit full adder?
The 1 bit full adder has three inputs, A, B, and CarryIn. It has two outputs, Result and CarryOut. To connect multiple 1 bit full adders together, bus the A and B inputs into their respective buses, bus the Result outputs into its bus, connect the low order bit's CarryIn to LogicFalse, and daisy chain each bit's CarryOut into the next bit's CarryIn. Use the last bit's CarryOut as overall CarryOut.
What is the value of 2K7 ohms?
K means thousands. 2K7 is another way of saying 2.7K and means two thousand seven hundred, or 2,700 ohms This method of component value indication is used because it is too easy to miss the decimal place, especially on small components or small font size in a schematic. Technicians may accidentally read 27K instead of 2.7K.
DC current gain is collector-emitter current divided by base-emitter current. In linear mode, gain is beta, or hFe. In saturation mode, however, the transistor is over-driven and you can no longer relate collector-emitter current to base-emitter current. The transistor operates like a switch, and collector-emitter current is a function of voltage and load impedance only. (Ignoring the relatively small voltage drop.) To maintain saturation mode, the collector-emitter current must be smaller than the base-emitter current times hFe. Often, it is several times smaller, because hFe can vary from transistor to transistor, and your design must account for this variability.
Ac and dc load line of BJT-explain?
when the dc supply given, dc load line lies in the Ic and Vcc. when the AC supply given, AC load line lies in the Ic and Vcc.
How do you get half of the voltage from a DC supply circuit?
By using a voltage divider, that is two resistors of the same value in series across the DC supply. Half of the supply voltage will be at the point where the two resistors is connected. But how much wattage of those resistors is also an issue.
Why series a resistor with a load for a DC supply circuit?
Good question on a linear power supply a load is not really required since it is nothing but a low band power amplifier. ON a switching type power supply a minimum load is always required so the PWM has something to control to. Also the soft start circuit may blowup waiting for feedback .Critical circuit since it operates for a very short time. however the load is in parallel not in series.
What are Ac load lines in an amplifier and how they are drawn?
The dc load resistance is Rc but the AC Load resistance is (RcRl).
If a load line is drawn the slope of which is -1(Rc Rl) .
Then it is called an AC load line and it is to be used when the transistor is operating as an amplifier.
Apparent boost in lows because of full track being played on multitrack machines.
If you have two parallel plates forming a capacitor, the electric field does not end abruptly at the edge of the plates. There is some field outside that plates that curves from one to the other. This causes the real capacitance to be larger than what you'd calculate using the ideal formula. You have more electric field because of the fringe fields.
A class B amplifier is biased?
hi i m nishikant
Why you use 455kHz frequency as an intermediate frequency in communication?
The intermediate frequency in the superheterodyne receiver is chosen as the desired compromise between sensitivity and selectivity. 455kHz is used in AM broadcast applications, while 10.7mHz is used for FM. The IF stage is tuned for a steep skirt passband at that frequency, allowing only the desired heterodyned (shifted) input signal to make it through to the demodulator.
On my c240 2001 car amplifier is located in the trunk on the right side (passender side of the vehicle) behind the carpet.
Components used inside programmable logic controller panel?
φύσις With the motion of e+Pi x ^ . Inside this is gold allumionium and copper sulfate.
How do you prevent multimeter from damaged?
Besides not dropping it, you prevent damage to a multimeter by never connecting it to a circuit that it is not intended to measure. Two examples... If you are in a 0.6 milliamp range you would not want to connect the meter to a 6,000 volt focus pin in a television set. If you are in ohms mode, you would not want to connect the meter to a circuit that has voltage present.
Why is non inverting summing amplifier using op amp not used?
It is not true. The non-inverting summing amplifier is used all the time. It is an excellent Analog Signal Processing circuit. As an example, the bipolar to unipolar converter can be designed with a non-inverting summing amplifier.
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Modern electronic multimeter measures resistances by?
forcing a constant current and measuring the voltage across the unknown resistor.
How does DC to ac power supply work?
If having DC and AC is required then a PWM pulse width modulator is required to chop the DC to make AC
6 wire unipolar stepper motor pin connection?
tel me the connections of 6wire stepper motor with 8051 microcontroller
The amount of frequency shift during modulation is called?
Frequency shift keying in digital communication and Frequency modulation in analog communication..........
It is a horizontal line of ladder logic.
Ladder logic is a language used to program PLC's.
It's called Ladder Logic because the programs are formed in the shape of a ladder. Each horizontal line in the program looks like the "rung" of a ladder, which is why they call it Ladder Logic.
It is................................................................................................................................................................................................................................................ i have no idea :P
