Electrostatics

The figure of merit is used to evaluate the performance of a sensor by considering factors like sensitivity, resolution, and noise. Current sensitivity specifically refers to the ability of a sensor to respond to changes in current. A higher figure of merit indicates better overall sensor performance, which can be influenced by the current sensitivity of the sensor.

We have given that : Two charges first coloumb = 200 micro coloumb/ 200*10-6 ( there 6 is power ,1 micro coloumb = 10 di power -6/ 10-6) Second coloumb = 500 micro coloumb/500*10-6. We have given that Electrostatic Force = 5 gf ( 5 gf = 0.05 N) We need to calculate distance (r). We know that F = kq1q2/r square. R square = 9*10di power 9*200 microC*500 microC/0.05N Calculate it you will get r square = 18000mitre & r = 134.16 which is approx to 135.5 m. We know that k = 9*10di power 9.

The material is called an insulator. Insulators have high electrical resistance, which inhibits the flow of electric current through them. Examples of insulators include rubber, glass, and plastic.

The Static Charge typically lasts for a few minutes, depending on the environment and materials involved. It can dissipate quickly if the charged object comes into contact with a conductor or if the surroundings are humid.

The change in potential difference across a capacitor is determined by the amount of charge stored on the capacitor and the capacitance of the capacitor. The relationship is given by V = Q/C, where V is the potential difference, Q is the charge stored on the capacitor, and C is the capacitance.

Every object contains charge but it s usually hidden in daily life because object contains equal number of positive and negative charges. However, imbalance in any of the charges(positive or negative) in objects is responsible for their interaction with other charged objects.

everything we see is made up of tiny little parts called atoms. The atoms are made of even smaller parts. These are called protons, electrons and neutrons. They are very different from each other in many ways. One way they are different is their "charge." Protons have a positive (+) charge. Electrons have a negative (-) charge. Neutrons have no charge.Usually, atoms have the same number of electrons and protons. Then the atom has no charge, it is "neutral." But if you rub things together, electrons can move from one atom to another. Some atoms get extra electrons. They have a negative charge. Other atoms lose electrons. They have a positive charge. When charges are separated like this, it is called static electricity.

If two things have different charges, they attract, or pull towards each other. If two things have the same charge, they repel, or push away from each other.

So, why does your hair stand up after you take your hat off? When you pull your hat off, it rubs against your hair. Electrons move from your hair to the hat. Now each of the hairs has the same positive charge. Things with the same charge repel each other. So the hairs try to move away from each other. The farthest they can get is to stand up and away from all the other hairs.

If you walk across a carpet, electrons move from the rug to you. Now you have extra electrons. Touch a door knob and ZAP! The electrons move from you to the knob. You get a shock.

The movement of paper bits towards the rubbed plastic strip indicates the presence of static electricity. When the plastic is rubbed, electrons transfer from the plastic to the paper, causing the paper bits to be attracted to the strip due to opposite charges.

Adhesion in static electricity refers to the attraction between different materials that causes them to stick together. This adhesion is crucial for the transfer of electron charges between the materials, which can result in static electricity buildup. The presence of adhesion allows for the separation of charges and the generation of static electricity.

Quartz is considered an insulating material because it does not conduct electricity well. It is a dielectric material with high resistivity, which means it does not allow the flow of electric current easily.

The tin foils on the sides of a gold-leaf electroscope help to discharge any excess charge quickly, allowing the gold leaf to return to its neutral position. The tin foils also help shield the gold leaf from any external electric fields that could interfere with the electroscope's measurements.

Grounding your home can help dissipate static electricity but may not completely eliminate it. Other factors such as humidity levels and types of flooring can also impact the presence of static electricity in your home. Grounding can provide a path for static discharge to prevent buildup.

Materials such as metals (e.g. copper, aluminum), water, and graphite are good conductors of static electricity because they have a high concentration of free electrons that can easily move within the material to carry the electric charge away. Conversely, materials like rubber, plastic, and glass are insulators and do not conduct static electricity well.

No, charged body doesn't need to touch the ball. The presence of a charged body near the electroscope is enough to cause the leaves to diverge due to the transfer of charge.

The electric field due to a point charge in cylindrical coordinates can be expressed as ( \vec{E} = \frac{1}{4 \pi \varepsilon_0} \frac{q}{r} \hat{r} ), where ( q ) is the charge, ( r ) is the radial distance from the point charge, and ( \hat{r} ) is the unit vector in the radial direction.

Yes-we are composed of 95% water with salt and that's a good conductor. If you want to avoid static electricity shock, carry a quarter with you and touch metal first to discharge yourself.

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No, we cannot make non-magnetic materials magnetic. The magnetic properties of a material are determined by its atomic structure, so unless the material contains magnetic elements or has been magnetized before, it will not be magnetic.

You can draw red light waves by sketching a series of oscillating curves in the shape of a sine or cosine wave where the amplitude represents the intensity of the light. Use a red color to represent the wavelength of red light, typically around 620-750 nanometers. Remember that the distance between two peaks or troughs of the wave represents the wavelength of the light.

Yes, longer hair can contribute to more static electricity, as it provides a greater surface area for friction to occur. Additionally, factors such as dry air and certain hair products can also influence the amount of static electricity in hair.

It affects by not allowing as much static electricity to stay on the balloon's surface. When the air has more moisture in it (humidity), the static electricity picked up is more likely to disperse in the air than stay on the surface area. As it's the opposite when the air is dry....when the balloon picks up the static electricity, it is more likely to hold on to it than in dryer air than disperse it like it does in warmer air.

Sparks are observed when clothes are removed on a dry day because the friction between the clothes and the body generates static electricity. This static charge can build up on the clothes and discharge as sparks when they are removed. Dry air does not conduct electricity well, so the charge remains on the clothes until it can discharge through a spark.

Mutual induction is the phenomenon where a changing magnetic field in one coil induces an electromotive force in a nearby coil. This effect is the basis for the operation of transformers and is used in various applications like wireless charging and data transmission.

Good: Static electricity can be useful in many applications such as printers, photocopiers, and air filters, where it is used to attract dust particles or toner. However, it can also be dangerous when it causes sparks that can ignite flammable gases or vapors.

Bad: Static electricity can interfere with electronic devices, cause discomfort or shock when touching metal surfaces, and potentially damage sensitive electronic equipment. Additionally, static electricity can also be a nuisance when it causes clothing to cling together or attract dust.

An electrostatic (one word, not two) smoke precipitator is an apparatus which ionises the gas in a space. The ionised gas molecules attract smoke particles which agglomerate and, when they have reached a sufficient size they fall to the ground under their own weight.