Because , in some cases for a negative voltage the circuit components will be biased .
you need to be mo specific.
You need a positive input to operate the transistor and since most circuits are negatively grounded when the transistor is not in use it has a negative input current thus using less power most of the time.
Theoretically, it can be drawn at any angle. Normally, however. it is drawn along the real, positive, axis (i.e. facing East). For series circuits, the reference phasor is the current and, for parallel circuits, the reference phasor is the voltage. For transformers, it is the flux.
chutiya bahanchod
No, there's no such thing as "digital energy". The calculator simply uses electrical energy. However, electronic equipment that are plugged into the electrical outlet (including calculators, radio receivers, computers, and many more) need special adapters to adapt the electrical current as follows:1. The voltage from the outlet, 110 or 220 volt, is way too high. Electronic equipment usually needs voltages somewhere around 3-12 volts. A simple transformer would do, but:2. The voltage for electronic appliances has to be DC. Since the electricity from the outlet is AC, that has to be converted too.No, there's no such thing as "digital energy". The calculator simply uses electrical energy. However, electronic equipment that are plugged into the electrical outlet (including calculators, radio receivers, computers, and many more) need special adapters to adapt the electrical current as follows:1. The voltage from the outlet, 110 or 220 volt, is way too high. Electronic equipment usually needs voltages somewhere around 3-12 volts. A simple transformer would do, but:2. The voltage for electronic appliances has to be DC. Since the electricity from the outlet is AC, that has to be converted too.No, there's no such thing as "digital energy". The calculator simply uses electrical energy. However, electronic equipment that are plugged into the electrical outlet (including calculators, radio receivers, computers, and many more) need special adapters to adapt the electrical current as follows:1. The voltage from the outlet, 110 or 220 volt, is way too high. Electronic equipment usually needs voltages somewhere around 3-12 volts. A simple transformer would do, but:2. The voltage for electronic appliances has to be DC. Since the electricity from the outlet is AC, that has to be converted too.No, there's no such thing as "digital energy". The calculator simply uses electrical energy. However, electronic equipment that are plugged into the electrical outlet (including calculators, radio receivers, computers, and many more) need special adapters to adapt the electrical current as follows:1. The voltage from the outlet, 110 or 220 volt, is way too high. Electronic equipment usually needs voltages somewhere around 3-12 volts. A simple transformer would do, but:2. The voltage for electronic appliances has to be DC. Since the electricity from the outlet is AC, that has to be converted too.
you need to be mo specific.
We need to use electric circuits so as to make the transfer of electricity easier. you must have seen various paths made in the circuits, these path controls and regulates the flow of current . But if we don't use electronic circuits then we will have to use wires which is very difficult to handle when we have to do large no. of operations li in computer.
Uzair Natha Rulezz
I dont know but it is to get a circuit common and to give a negative input to the circuit
It gets hooked up like a switch would be. The main power wire goes to the positive side on the cap and a short power wire comes off of the positive side of the cap to go to the amp. Ground comes from car metal to the negative side of the cap and a short ground comes off of that negative to go to the negative on the amp.
Yes, household power supplies are generally alternating current, whereas cells produce direct current. Of course they are are designed to run on a domestic power supply, but the first thing that happens inside the set, is that it is converted to DC. It is then reduced to lower voltages using inverters, to run the semiconductors of the circuits. Electronic circuits need DC at low voltages to work. TV sets that work off batteries and/or car power supplies, can dispense with the Inverters, as this is already at a more suitable voltage.
Capacitors used in electronic circuits need not have a minimum voltage rating of 25 volts. Electronic circuits powered by batteries at 12 volts and below should work fine with capacitors rated at 15 volts.
inorder to avoid the inter mixing of various input signals each signal is provideed with some time delay
I think you need to give more detail as a transistor is an electronic component found in all electronic circuits and there are around 2,000 in your car car stereo alone. It is short for transfer resistor. Hope this helps.
Sometimes people over engineer circuits. Often the reason for having different voltages are due to needing something like 12 volts to light 4 led's how ever your IC chip only is needing 1.2 volts. Over powering the chip will make it hot, which will make it pull more power making it even hotter. Thus you'll blown or burn your equipment up. You also have to control which direction power is going, when to send the power. Often circuits use voltages to act as a signal. Such as a gas pedal that you push down increases the voltage to let the circuit know how much change there has been. In general all those different components need different voltages and amperage to operate within their designated range.
Circuits need 3 things to work. They need a load, (what the power goes on) power source, (the battery) and connectors (the wire inbetween). Circuits use electrons to flow from the negative side of the battery and around the circuit back to the battery. This repeats until the circuit breaks.
They aren't if you get into advanced enough classes where design actually can take place. Circuitry taught in school is typically simplified. Industrial circuits are designed to handle industrial applications, they have to last longer than a one hour lab class. Induced currents, heating issues, stray voltages, EMF concerns, etc. need to be considered.