Electronics Engineering

10-20 nanometers

There are chips that will convert a analog to a digital form. It works on the principle of comparing the input to a reference voltage and outputting the bits [digital] as a value compared to the reference voltage. it can be 4,8,12, of digital data for a 12bits the LSB is 2.4mv.

This seeming contradiction occurs on most physics tests. But it's true, and here's why:

Lamp A by itself has power of P=IxE ; 60=IxE ; so I=60/220=0.27 amperes. Thus the lamp has a resistance E=IxR ; R=220/0.27 = 807 ohms.

Lamp B by itself has a power of P=IxE ; so I=100/220 = 0.45 amperes. Thus the lamp has a resistance E=IxR ; R=220/0.45 = 489 ohms.

Since the resistance in series is added up, the total resistance is 807+489 =1296 ohms and the current I= E/R = 220/1296 = 0.17.....

Phew... Since P= IxIxR

For 60W lamp A, P= 0.17 x 0.17 x 807 = 23.3 watts.

For 100W lamp B, P=0.17 x 0.17 x 489 = 14.1 watts.

So, when they are wired in series, the bright one and the dim one appear to be reversed as to their respective "normal rated powers".

Their normal rated powers are only correct when both of them are supplied with their normal rated voltage of 220 volts, i.e. when they are wired in parallel. This makes a lot of sense if you think about it.

ELECTROMOTIVE MAGNETIC FORCE emf measured as volts . It does not guarantees a current or power but just the force is present. With a load it may disappear

Ohm's Law: Voltage = Current times Resistance

no...it is neither energy nor power signal . Rampis neither energy nor power signalbecause it has infinite energy as well as infinite power.....saket kumar (electronics & communication engineer),BMSCE MUKTSAR (PUNJAB).

Yes, if the transformer output is center-tapped; otherwise, no, a bridge rectifier requires four diodes, or six for three phase power.

More technically correct, what we are talking about is a full-wave rectifier. A bridge rectifier is properly always four or six diodes.

The primary difference is that a semiconductor diode is a diode with a p-n junction, and a light-emitting diode is a special case or special type of semiconductor diode that emits light when it is forward biased.

The voltage measured across an open in a series circuit is the equivalent of the sourse voltage.

The effective current is the square-root of the average value of the current-squared, root-mean-square or rms for short. That is because the power in a resistive load like a water heater is proportional to the square of the current.

The rms voltage of an ac supply gives the same heating effect as a dc supply of the same voltage.

The peak current is sqrt(2) times higher.

The rms voltage and current are always quoted when referring to an ac power supply.

You're looking for what some folks call a voltage converter, international voltage converter or international voltage adapter (and there are more names). For smaller equipment, an "adapter" like folks get in those little travel kits will probably do the trick. Electrical outlets in Europe are different from the U.S. outlets (both in voltage as well as in the shape of the plug), and the kit contains the stuff to make your little shaver or your laptop work over there. For larger equipment, a step-down transformer is required. These come in various sizes, and they are usually not super cheap. The unit is made of copper wire and a ferromagnetic (iron) core, and it will be fairly heavy, bulky and even a bit inconvenient. Ask a local electronics outlet representative to help you sort it out. They have the stuff for sale and are in "sales mode" when they're working, but they can be helpful by supplying information (even if they don't make a sale), and that is part of their job, too. Certainly there are a number of online resources that vend the products that can help.

Thet resistor opposes the flow of current through it becoz of its internal construction. Its material has opposing property.

A: AC or our line voltage is sinusoidal in nature it goes up to a positive peak returns to zero and proceed to the negative peak. 120V AC is actually swinging from peak to peak. It is 120 volts but the peak is the 120 v times 1.41 or 169.2 volts and since it also go negative then the peak to peak 120 volts times 2.82 or 338.40 volts or twice the peak voltage

That is a wrong question, because the house has to take the voltage, the power station is delivering.

Either 120 volts in the USA or 230 volts in Europe.

Volts are never consumed.

it is a microcontoller ( a version of 8051)

At denotes ATMEL company

C stands for CMOS

9 stands for flash memory

Investment money flows freely around the world.

By Kirchoff's current law, the sum of the signed currents entering a node is zero.

In a parallel circuit, this means the sum of the (often single) current(s) entering a node (junction) is the same as the sum of the (two or more) currents leaving that node.

To determine the current in a particular branch, you need the voltage and resistance, or you need something else that you can use to calculate the current.

In the second case, if you know the total current and one branch current in a two branch circuit, you know the other branch by calculating total minus first branch.

For the first case, one method is to take advantage of Kirchoff's voltage law, which states that the signed sums of the voltage drops around a series circuit is zero. In a parallel circuit, this means that the voltage drop across each branch is the same. If you then also know resistance, you know current.

the electricity will get caught in the insulator and not go through

It is direct band gap material.

Ur talking about the movie rating, right? It stands for 15 accompaunt (sorry for spelling) if your under 15, you must be with an adult. Sorry if your talking about something else.

The heating element in the electric kettle will be primarily pure resistive. Power in that case is calculated

P = E*I = 250V*I = 3000 W

So the current is

I = 3000 W/250 V = 12 Amps

If there is anything else (lights, radio, PC, etc.) on the circuit that may be taking some current you are very likely to go over 13 A frequently. I don't know how accurate you can expect a fuse's blow point to be. Perhaps +/- 10%? Doesn't seem very trouble free.

Even if the circuit is dedicated to the kettle, consider this idea. We don't know exactly what conditions the manufacturer was considering when specifying the wattage. Probably operating conditions, when the element was hot. Then Ohm's Law tells us that the resistance R is

R = E/I = 250 V/12 Amps = 20.8 Ohms

But the element's resistance would be lower at first when it is cold.

My calculations indicate that if the element is made of nichrome wire, and if the temperature change is 200 degrees C, the hot resistance of 21 Ohms is probably about 1.7 Ohms higher than when at room temperature. If that is true, when you first turn it on, Ohm's Law says that the initial current should be 12.95 Amps.

Regardless of this analysis, remember that the fuse requirement is based on the size of the wires in the wall. You don't want those wires to get hot. Don't put in a bigger fuse than what was there originally.

Many can measure both - Vrms (AC) or DC voltage.

It constantly "drains" the circuit