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What will happen if the supply voltage polarity is reveresed for the case of using a diode with piv of 4.8 volt?
Wiki User
∙ 12y ago
If we give more than 4.8 volt to a diode in reverse bias condition it will break down or destroyed.
Wiki User
∙ 12y ago
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Why do telecommunication systems use negative voltage?
negative polarity is achieved by grounding the positive terminal of power supply system and the battery bank. This is done to prevent electolysis depositions.
What will happen if instrument with 110v supply voltage give 220 v supply?
the appliance will burn out, eg if it is a 60 watt light bulb it will burn at 120 watt for as long as the fillament can take it and that wont be long
Can the power supply provide a negative voltage output?
Yes. Depending on the design, the power supply can provide any voltage desired.
How do you amplify voltage?
if it is an A.C supply we can amplify by transformers, transistors, voltage doublers and voltage multipliers. but if it is an D.C supply, the voltage can be amplified only by means of choppers (i.e buck converters, boost converters and buck boost converters)
What are the two advantages of voltage-divider bias?
only one dc supply is necessary.Operating point is almost independent of β variation.Operating point stabilized against shift in temperature.
What happen if the value of the dc supply is changed in amplitude modulation?
The rf output voltage should be proportional to the signal voltage in AM. A change in the DC supply voltage should also cause a proportional change to the rf output voltage.
What is the function of a dc motor?
Its a motor that will do some work if you feed it some DC voltage. Reversing the dc supply voltage polarity will make it run in a reverse direction. The electric windows in your car is a good example of a DC motor's usefulness. The window up-down switches simply reverses the + and - polarity of the 12 volt vehicle supply to the window motor to make it take the window up or take it down.
How can the output voltage of a DC generator's polarity be reversed?
The polarity of DC generator can be reversed by reversing the field current as well as direction of rotation
Why do telecommunication systems use negative voltage?
negative polarity is achieved by grounding the positive terminal of power supply system and the battery bank. This is done to prevent electolysis depositions.
Can you convert a 9v battery snap to a dc power supply?
You would need a 9V dc supply. The potential current output of you supply myst be greater than or equal to the current draw of the pedal. (100ma load on a 150ma supply: fine. 150ma load on a 100ma supply: bad.) With these conditions met you can just get another 9V snap and wire it to your supply. Remember, as you are connecting two snaps together, the polarity of the snap for your supply will be reversed. (Red is - and black is +) CHECK YOUR WORK! If you mix up the polarity, you could smoke your pedal. You can also make your own regulator with a LM317 voltage regulator from a higher supply. This will only work with another low voltage DC supply with a voltage output higher than 9V. It will not boost the voltage and will not work with line voltages. It is a common IC and many manufacturers make them. Check your pedal. Most of them have DC in jacks so you don't need to hook to the battery clip.
Why ac current attract?
As we touch an ac supply in which due to body resistance , we create a phase difference between the ac supply and us . As ac reverses polarity , so do we , but our polarity change is opposite to that of the polarity change of ac supply , hence our body gets attracted to the ac supply .
What will happen if you connect 220v bulb in parallel to 100k ohm resistances with supply of 440 v?
This bulb is very likely to be burn out since the 440 supply voltage is very higher than it's rated voltage.
What does a negative cell voltage mean?
The reaction is spontaneous.
Why clipping happen for op-amp?
Clipping occurs in the voltage waveform when the input voltage, multiplied by the voltage gain of the op-amp circuit, exceeds the op-amp supply voltage as limited by the output network. The supply voltage and output network, limits the maximum voltage that can be achieved at the output. The op-amp behaves normally within its range of maximum voltage output, and then it is clipped when it reaches the maximum voltage of the circuit.
What would happen if the positive dc voltage is replaced with a negative dc source?
If you mean what would happen if you connected a DC device backwards, there could be one or two things happen depending on that the device is. If it was a DC motor it would operate in the opposite direction. If it was an electronic device it could burn out some components. Or with today's electronics nothing would happen. Up until a few years ago polarity to electronic devices was crucial that it be connected correctly. In today's electronics a bypass diode is inserted into the voltage supply line that will block the current flow if the connection is reversed. This one little addition to the circuit supply has saved the frying of many electronic components.
How can you get 12volts supply from speaker?
You can not. Speakers do not supply a voltage they need a voltage to operate correctly.
What happen if the secondary side of step down transformer supply a bigger voltage?
it would be called a step up transformer
