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What else can I help you with?
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.
Why do you connect electrical lamps in series?
If you are referring to house wiring, then you don't normally connect lamps in series with each other; they are normally connected in parallel with each other. When lamps are connected in parallel, each lamp is subjected to the same voltage; providing this is the rated voltage of each lamp, them each will operate at their rated power.If you did connect lamps in parallel, the you would find that the lamps with the higher power ratings will be dimmer than the lamps with the lower power ratings -which is not what you might expect!
Can you use a regular bulb in a heat lamp socket?
Never put a bulb in a light socket what has a higher wattage rating than the socket. This could cause either or both of the following problems, which could result in a fire:excessive current will cause heating of the wires providing power to the socketthe higher wattage bulb will be hotter than expected and may ignite the lampshade or other parts near it
Why do the dash radio and clock light dim when the head lights are turned on?
The headlights place a larger load on the battery and cause the voltage to drop enough to dim other devices slightly.
Why is the current lower when the voltage is higher?
This depends on the circuitry you apply voltage to. In a circuitry with a fixed resistance of 1 Ohm, 1 Volt would then generate 1 Ampere of Current. In the same circuitry, 2 Volt would generate 2 Ampere of Current. Increased voltage will, given the same circumstances, increase the current. In other words, your question must take something not defined into consideration, or the question may be wrong. In an attempt to explain why it often works this way I have to look away from fixed circuitries and give real life examples. By increasing the voltage, the effect of the resistance in an electrical cable is lowered. In other words, a thinner cable can carry the same "juice" of 360 Volt as compared with a thicker cable of 220 Volt or an even thicker one running at only 120 Volt. This makes much sense in the fact that thinner cables are cheaper. In a big house, there is much to gain by having access to higher voltages. A washingmachine, stove, cooker, tumbledryer, dishwasher... All can be made to utilize high voltage instead of low voltage. The current drained goes down, but the wattage remain the same. The electricity company benefit from less effect of resistance in the cables. They can give more punch with less. We can also look at a fixed wattage. If the wattage drained remains the same no matter the voltage, then the current goes down as the voltage rises.
What is buck boost converter?
Any device that outputs a voltage higher than its input voltage. This device can be capacitive, inductive, or other.
Why transformer is only used instead of any other device?
A transformer is the primary device which transforms voltage to a higher or lower voltage. In electronics, capacitors and resistors perform this function.
Is the resistance lower if you have a high current?
Lower than what? For the same voltage, a lower resistance means higher current. But beware, the voltage itself might depend on the current - thus - with a fixed resistance if you change the voltage, you will increase the current in the same proportion. Some things become higher resistance if they get hot (a tungsten filament in a lamp). Other things become lower resistance if they get hot (semiconductors). So it can all depend on what kind of circuit you have.
What is a feature that cause printers to require higher levels of maintenance than other electrical devices require?
high voltage
How do the features of germanium and silicon diodes compare to each other?
Germanium diodes have a lower forward voltage drop compared to silicon diodes, making them suitable for low voltage applications. However, they have higher leakage current and are more temperature sensitive. Silicon diodes, on the other hand, have higher forward voltage drop but are more stable over a wider temperature range and have lower leakage current.
How does voltage cause current to do work?
A voltage will cause electrons or other charge carriers to flow (if there is a path through which they can flow). In other words, it will cause a current.
How do you find primary number of turns in a transformer?
Unfortunately, it is not practical to find the number of turns in a transformer's windings. However, what matters is its turns ratio. This can be done by applying a low AC voltage to the higher-voltage* winding, and measuring the resulting voltage appearing across the lower-voltage winding. The turns ratio will be approximately the same as the voltage ratio.(*NOT THE OTHER WAY AROUND! Or you may up with a dangerously-high voltage induced into the higher-voltage winding!)
Why there is no electricity generation at 500 kv?
Electrical generation at higher voltages would have to have higher insulation between the windings of the generator. This would become physically impossible as the size of the generator would become so large that is would become inefficient. Voltages are generated at lower voltages where the insulation factor between windings is much lower. This low voltage is then transformed into a higher voltage for transmission to other locals.
Name a processor that requires dual voltage how are the two voltages used?
Pentium MMX and AMD K6 both use dual voltage. The lower supply voltage is used for the core and the higher voltage is used to power the I/O pins.
If you have several cells of say 9V in parallel the total voltage will still be 9V so what happens if all the cells are of different voltages?
You get the lowest voltage. Although it's not quite that simple. The higher voltage batteries will charge up the lower voltage ones to some extent, so you'll get the highest voltage that the lowest voltage battery can support while being charged by the other batteries.
What reduces voltage?
It depends on what you mean by 'voltage'. For example, if you mean electromotive force (e.m.f.), then the internal resistance of a battery or generator will cause an internal voltage drop, resulting in the terminal voltage being lower than the open-circuit voltage and the greater the load, the lower the open-circuit voltage. On the other hand, if you are asking 'how' do you reduce voltage, then there are various ways. For a.c. voltages, we can use a step-down transformer. For d.c. voltages, we can use a variable resistor connected as a potentiometer, or a pair of fixed-value resistors to form a voltage divider.
Why current flow from higher voltage to lower voltage?
Normal flow of electrons are from positive to a less negative potential. When a potential is applied meaning voltage electrons leave their orbit and move to another nucleus leaving at the same time a hole to be fill out by the next electron coming in. In essence electrons flow one way and holes flow in the opposite direction. It is possible to have -100v flowing into a -90v. electrons do not know what the potential can be raised to all they know is the differential potential of 10 v in this caseAnswerIt doesn't. If flows from a higher potential to a lower potential. Voltage means 'potential difference', which is quite different.A 'higher potential' is conventionally taken as meaning 'more positive', while a 'lower potential' is taken as meaning 'less positive'. The direction of conventional current (plus to minus), therefore, is from a higher potential to a lower potential.Electrons, on the other hand, move from negative to positive, so they move from a 'lower potential' to a 'higher potential'.
