Circuits

1.25 x 1019 give or take a few

A voltmeter connected across the broken (open) filament of a light bulb reads the

full voltage of the power supply whether the bulb is in a series or parallel circuit.

-- In a series circuit with other components in series with the bulb, this reading tells you

that at least one of the components is open, possibly the filament.

-- In a parallel circuit with other components in parallel with the bulb, or with

the bulb connected directly to the power supply, this reading tells you nothing ...

the voltmeter reads the full power supply voltage whether the bulb is open or good.

The voltmeter isn't a very helpful measurement to identify an open filament.

An ohmmeter, with the power to the circuit turned off, is much more helpful.

In a series circuit, the total potential difference provided by the power source is divided among the components in the circuit. As current flows through each component, there is a voltage drop across each one. This results in a reduction of potential difference as you move along the circuit.

When air is compressed by a tire pump, the speeds of air molecules increase. This is because the compression increases the pressure, causing the molecules to collide more frequently and with higher energy, leading to an increase in their average speed.

The main components in a circuit are a power source (such as a battery), conductive wires or traces, resistors to limit current, capacitors to store charge, inductors to store energy in a magnetic field, and electronic components such as transistors and diodes for controlling current flow. These components work together to create a pathway for electrical current to flow and perform desired functions within the circuit.

When electricity flows through the filament of a light bulb, it heats up the filament to such a high temperature that it begins to glow and emit light. This process is known as incandescence. As the filament glows, it emits light in the visible spectrum, allowing us to see.

Remember that a working capacitor can't conduct current through it. A capacitor
that's NOT in working condition has typically failed because the dielectric has been
punctured, resulting in a conductive path between the 'plates'. Any DC conductivity
through the capacitor indicates that the component has failed. DC conductivity is
easy to spot with an ohmmeter.

The tendency for a material to oppose the flow of electrons and convert electrical energy into thermal energy and light is known as resistance. This property is determined by the material's resistivity and is quantified in ohms (Ω). The higher the resistance of a material, the more it will convert electrical energy into heat and light.

If you measure zero current, then there are two possibilities,
and there's no way you can tell which one is true without
another measurement.
-- The voltage across the circuit may be zero,
and the resistance could be anything.
-- The resistance of the circuit may be infinite,
and the voltage could be anything.

I'm not sure what you mean by turning a dimmer switch "up".
-- When the dimming action of the device is turned 'up', the bulb
becomes more dim, that is, less bright.
-- The dimmer may have an arrow printed on its control, labeled 'brighter'.
In that case, when you turn the control in the direction of the arrow,
the light becomes brighter, i.e. less dim.

(Another possibility is: Bulb lights up and motor does not spin.)

The result all depends on the relative resistance of the bulb and the motor, because
that determines how much of the supply voltage appears across the light bulb, and
how much across the motor.

That's one of the big problems with a series circuit: The performance of one device
depends on the characteristics of the other devices in the same circuit. If you turn
the light off, the motor can't run at all. If the load on the motor changes, then the
light bulb flickers. And if you change the light bulb and put in one with a different
resistance, then the strength of the motor changes.

A pulse wave is a waveform where the signal switches between high and low levels at a consistent frequency, creating pulses of varying widths. A square wave is a type of pulse wave where the signal switches abruptly between two levels (high and low) at a fixed frequency, with the width of the pulses remaining constant.

If we assume that by charge you mean coulomb (the SI unit for charge). Then we are looking for the value of one Mega Coulomb.

The Mega prefix means 10^6(10 to the power of 6) therefore the charge in one Mega Coulomb is equivalent to 1*10^6 C or 1000000C (1 million Coulombs)

To measure the change in energy per unit charge across a resistor, you can use the formula E = VQ, where E is the energy, V is the voltage across the resistor, and Q is the charge passing through it. By measuring the voltage across the resistor and the charge passing through it, you can calculate the energy per unit charge.

If the electrical characteristics of the wire itself are not part of the experiment, then

the wire should be thick and short. This minimizes both the resistance and inductance

of the wire, and therefore the chances that the effects of the wire could influence

the observations of the experiment.

The current will flow from the live wire to the ground, through both of your hands,

through both of your arms, and along several paths through the rest of your body

in inverse proportion to the resistance of each path.

With your heart and spinal cord pretty much on the geometrically direct path, your

chance of survival essentially boils down to the voltage on the live wire, how dry

the skin of your hands is, and how much of your skin touches the live wire and the

ground connection. If the live wire is part of the AC wiring in your house, and you

have a good firm grip on it, and the fingers of your other hand are wrapped around

a water pipe, I would not give you a 1% chance of seeing another day.

Most drinking straws are made of plastic, which is generally not electrically conductive. However, paper straws may contain additives or coatings that could potentially make them conductive. It is always a good idea to exercise caution when using any materials near electrical sources.

There is no widely recognized term or product known as "amliphair." It is possible that you may have misspelled the word or it could be a brand name, product, or term specific to a certain industry or context. Can you provide more context or clarification?

The magnitude of drift velocity is small because it represents the average velocity of charge carriers in a material experiencing an electric field. The individual charge carriers move at high speeds, but they collide frequently with atoms in the material, leading to a net low average velocity. The drift velocity is proportional to the strength of the electric field and inversely proportional to the charge carrier's mobility and the charge density.

A circuit is any arrangement of objects (circuit elements) in which an electric current flows through a closed loop. The only absolutely essential elements of a circuit are something to make the current go, called a source, and something to carry the current around the circuit, called a conductor (usually, a wire, a metal trace on a circuit board, or some of each.) There are many other kinds of circuit elements that have various properties, and each of these may serve a number of different functions. The most basic of the elements are the resistor, the capacitor, and the inductor. Others include transformers, transistors (of various types.) diodes, and many more. There properties and functions are so varied as to far exceed what can be written here; indeed, they fill large textbooks. Multiple sources exist on the web with some basic information on these that is beyond the scope of a single answer here. Just google it, and try Wikipedia.

Increasing the resistance in a circuit will reduce the current flowing through the circuit, according to Ohm's Law (V=IR). This will also reduce the power dissipated in the circuit. Additionally, increasing resistance can affect the voltage distribution in the circuit if it is in series with other components.