Electrostatics

The magnitude of the electric field gets very big nearby sharp edges of the charged object. This leads to molecules in the surronding air being ionized, decharging the object at the same time as it leads to the ionized molecules repelling the object, creating a stream of ions away from the edge.

Electrostatic dust precipitators use an electric field to charge particles in the smoke as they pass through. The charged particles are then attracted to oppositely charged plates within the precipitator, causing them to stick to the plates and be removed from the smoke. This process effectively captures and removes smoke particles from the chimney emissions.

A static charge does not emit radiation because it does not involve the accelerating or decelerating motion of charged particles, which is necessary to produce electromagnetic radiation. In a static charge situation, the charges are stationary or in constant motion, so there is no changing electric or magnetic field to generate radiation.

Lightning is important because it helps to balance the Earth's electrical charge, contributes to the nitrogen cycle by causing nitrogen to fix in the soil, and can trigger wildfires that play a role in maintaining ecosystems.

To "electrify" something means to provide it with an electric current or power source. This can be done by plugging it into an outlet, inserting batteries, or connecting it to a power source such as a generator or solar panel.

The approximate distance an electron is located from the nucleus is measured by the concept of electron cloud or electron probability density. This concept is utilized in quantum mechanics to describe the distribution of the electron's probable locations within an atom.

1. Rubbing a balloon on hair and seeing it stick to a wall, as the balloon picks up excess electrons and becomes negatively charged.
2. Lightning during a thunderstorm, where there is a discharge of built-up electric charge between clouds or between a cloud and the ground.
3. Static electricity causing clothes to cling together in a dryer, due to the transfer of electrons between the fabric.

One technological use of static electricity is in photocopiers. Static electricity is used to attract toner particles to the charged areas of a photocopier drum, allowing the creation of an image that can be transferred onto paper.

The value of k in electrostatics represents Coulomb's constant, which is approximately (8.99 \times 10^9 , \text{N m}^2/\text{C}^2). It is used to quantify the strength of the electrostatic force between two charged objects according to Coulomb's Law.

Fluorine... by far. Its so electronegative that it will never form double bonds, even if they would make sense by the octet rule. BF3 is a really good example of this

Soft iron will not have any magnetic properties unless it is magnetized, while a piece of copper will not be attracted to a magnet at all. A magnet will attract both soft iron and copper, but the attraction will be stronger for the soft iron due to its ability to become magnetized.

Static electricity can sometimes appear blue when it discharges in the form of a spark. The blue color is due to the excitation of nitrogen and oxygen molecules in the air, which emit light in the blue color range as they release energy. This phenomenon is similar to how neon lights produce their color.

The formula for quantity can vary depending on the context. In general, quantity refers to the amount or number of something. It can be calculated using different formulas depending on the specific situation, such as the quantity of a substance in chemistry, the quantity of goods sold in business, or the quantity of items in a set.

The negatively charged object will attract electrons in the neutral conductor towards it, causing the electrons to redistribute within the conductor. This redistribution will result in the end of the conductor closest to the negatively charged object becoming slightly negatively charged, while the end farthest from it becomes slightly positively charged. This induces a temporary dipole moment in the neutral conductor.

The force between the two charges can be calculated using Coulomb's Law. The formula is (F = k \frac{q_1 q_2}{r^2}), where (k) is the electrostatic constant ((8.99 \times 10^9 N m^2/C^2)), (q_1) and (q_2) are the magnitudes of the charges (5 C and 3 C), and (r) is the distance between the charges (4 m). After plugging in the values, the force between the charges is found to be 112.38 Newtons.

Photons travel outward from a light bulb in all directions due to their wave-particle duality. As the light bulb emits electromagnetic radiation, photons are released and propagate in a straight line until they interact with surfaces or particles. The photons then transfer their energy to these surfaces, allowing us to see the light emitted from the bulb.

If your hands are wet when you touch a charged object, there is a higher likelihood of getting an electric shock. Water is a good conductor of electricity, so it can allow the electric charge to flow through your body more easily, increasing the risk of injury. It's important to avoid touching charged objects with wet hands to prevent electric shocks.

When exposed to a magnetic field, materials with iron, such as paper clips, can temporarily become magnets. This occurs because the magnetic field aligns the magnetic domains within the material, creating a temporary magnetic force. Once the external magnetic field is removed, the material loses its magnetic properties.

developed in the 1780s by French physicist Charles Augustin de Coulomb The magnitude of the electrostatic force between two point electric charges is directly proportional to the product of the magnitudes of each charge and inversely proportional to the square of the distance between the charges. F = k q1q2 \ d2 As F is electric force

k is coulomb's constant = 9*10^9 Nm^2\C^2

q1 and q2 are the charges measured in coulombs d is the distance between them measured in meters

while running, a slip ring induction motor ,it got tripped and found 2 nos power fuses blown out.on inspection rotor winding IR value zero.ie after releasing the brushes. how it happens?. pl ans

when the motor is starting its an induction motor with a squirrel cage

while its getting up to speed the voltage across the slip rings will be very high

there is a field resister shorting the rings this is removed and replaced with dc

with a make before break field application relay

if the dc is applied before the motor is up to near synchronous speed the stator will need to have very high current to accelerate the mass of the machine

sometimes the controls are magnetic

sometimes a centrifugal switch

sometimes a timer

a compressor will have an unloader to minimise load on the motor before the dc is applied

however this is done

if dc is on the field before you get close to operating speed you will blow fuses

if the "failure" happened while running it could be a momentary power interruption or a momentary load interruption

if the controls didnt see it and restart the motor

you can dissect the fuses and see weather you had a short or an overload

or add a bit more detail about the equipment and incident

Electrical currents can flow readily through conductive materials such as metals like copper, aluminum, and gold. These materials have a high density of free electrons that can easily move in response to an electric field, allowing for the flow of electricity.

Yes, static electricity refers to electrical charges that are not flowing as a current, but rather remain stationary on an insulating material or object. This buildup of charge occurs when certain materials rub against each other, causing electrons to transfer and create an imbalance of positive and negative charges.