Electrostatics

Resistors are used for many things in an electronic circuit, including creating a voltage drop at some point; attenuating noise on a signal before it reaches the output stage; in combination with transistor devices, split a signal into 2 opposite phases; present a minimum load to a device to keep it working at its optimum point; to create an appropriate bias level for transistor device inputs; to control a timing circuit in conjunction with a capacitor; to create a tuned circuit in conjunction with an inductor, and/or a capacitor . . . . and the list goes on . . .

No. The sum of the gravitational field and the electric field is a useless concept.

Electrostatics is the study of stationary electric charges and the forces that they exert on each other. It involves understanding how charged objects interact and the principles governing the behavior of static electricity.

Diffraction means bending. Okay. Bending of what?

Bending of waves. Waves may be sound wave, or waves on the surface of water and even light wave.

Bending at?

Bending at the sharp edges of the obstacle on the way of movement of the wave.

If suppose light is not a wave then diffraction phenomenon may not be possible. The very diffraction phenomenon establishes once again that light is a wave.

Electroscopes detect electric charge by the motion of a test object due to the Coulomb electrostatic force. The electric potential or voltage of an object equals its charge divided by its capacitance, so electroscopes can be regarded as crude voltmeters. The accumulation of enough charge to detect with an electroscope requires hundreds or thousands of volts, so electroscopes are only used with high voltage sources such as static electricity and electrostatic machines.

An atom becomes negative by gaining one or more extra electrons, which gives it a net negative charge. This can occur through chemical reactions where atoms either share or transfer electrons with other atoms. Negative ions are also known as anions.

static electricity is caused by the attraction or repulsion of electric charges. surfaces have the ability to transfer charges to each other. when you comb your hair that is what happens. your hair gives the comb so electrons so now the comb isnegativley charged. when you put the comb near the paper, all the negative charges in the paper move away and te positive chrages move toward the comb,this makes the paper cling to the comb

A thermoelectric generator is typically used to transform thermal energy into electrical energy. It operates based on the Seebeck effect, where temperature differences between two semiconductor materials generate an electric current.

Rubbing glass with silk or rubber can create static electricity due to the friction between the materials. This static charge can cause the glass to attract small objects or produce a mild electric shock when touched.

Static electricity is the build-up of electric charge on the surface of an object. It occurs when objects rub against each other and transfer electrons, resulting in an imbalance of positive and negative charges. This can cause objects to attract or repel each other, create sparks, or give a mild electric shock.

Yes, it can. The "normal" static electricity we usually encounter isn't lethal. If we shuffle across a rug on a dry day, we can get a nasty zap! when we reach for the door knob. But note that lightning is static electricity, and it can kill or disable individuals with ridiculous ease.

When a magnetic field passes through different media, the level of magnetism can change due to the material's magnetic properties. Some materials such as ferromagnetic substances like iron can enhance the magnetic field, while diamagnetic materials like copper can slightly weaken it. The effectiveness of a magnetic field passing through different media is often described by the material's magnetic permeability.

The two factors that affect the force of gravity are the mass of the objects and the distance between them. Gravity is directly proportional to the mass of the objects and inversely proportional to the square of the distance between them.

The process by which hair itself becomes statically charged is a bit involved to understand, but if you will admit this, notice that each hair may individually become charged, and therefore the many thousands of hairs on your head, with their large surface area, may carry a lot of charge.

Ceiling fans usually can rotate in either direction. There is usually a switch on the unit. This allows downflow during the warm season and upflow during the winter. The direction of rotation of a table fan is determined by the shape of the blades. A motor can be made to run in either direction but to force air to the front of the table fan, it must rotate in the direction that the blades will force the air properly.

Static electricity occurs when two objects rub against each other, causing electrons to be transferred from one object to the other. This transfer of electrons creates an imbalance in charge, leading to one object becoming positively charged and the other becoming negatively charged. The resulting build-up of static electricity can produce sparks or shocks.

This is called static electricity. When you rub your feet on the rug, electrons are transferred from the rug to your body, creating a charge imbalance. When you touch a doorknob, the excess electrons on your body are discharged, creating a spark.

It doesn't differ at all, an electric current is electricity that is moving in a current and when static electricity is discharged from an object it creates a current from one object to another

When a balloon is rubbed against a wool cloth, electrons are transferred from the wool to the balloon, leaving the balloon with an excess of electrons and a negative charge. This transfer of electrons is due to the difference in the materials' electron affinities, causing one material to lose electrons (becoming positively charged) and the other to gain electrons (becoming negatively charged).

A food chain is a diagram, of some sort, that describes how energy is passed from one living thing to the other. Commonly, there are three or four "levels" of a food chain - each level having the capacity of only one living thing per food chain. Level one usually contains a plant or tree (or some other producer); level two usually contains a herbivore or omnivore; level three usually contains a carnivore; level four usually contains humans, or a carnivore. Some good and bad examples that base around this definition: [ Grass ] -> [ Zebra ] -> [ Lion ] (Levels and orders are correct, all living things)
[ Sun ] -> [ Grass ] -> [ Zebra ] -> [ Lion ] (The levels are not correct - sun is not a living thing) [ Grass ] - > [ Lion ] -> [ Zebra ] (Order is incorrect)

A polythene rod acquires a negative charge when rubbed with a duster. This is because electrons are transferred from the duster to the polythene rod, leaving the rod with an excess of electrons and a negative charge.

If you have a lamp, you can assume that the resistance of the lamp when it is under power will follow the ohms law.

BUT, one thing you must remember is, when a lamp is under load, it is glowing HOT. When metal is HOT, the molculoes of the meals are in much more active state. When this happens, the resistance will increase. Conversely, when the lamp is NOT on ON state, the filaments are cold. Moleculoes in the filaments are not as active. Thus, the resistance is lower. There is almost 10 to 1 difference in resistance from hot to cold.

Taking out a multimeter and measuring the resistance of the lamp will not help you determine the resistance of the lamp when it is actually under load (with voltage applied) Really, the only thing you can do is to measure the voltage, measure the current, then arrive at the resistance mathmatically.

Its compact and all the reactants are in one location so you wont have to go search no god i hate people who answer and dont have a clue he is talking about the advantages over secondary and so on which would be the long charge life.