I am summarily dismissing "Zeus throwing bolts" as an explanation! It is hard to imagine anything as dramatic as lightning going completely unexplained in our modern technical world but, to be fair, electricity is usually invisible and, without electronic gadgets, it is rather elusive. Even a poorly financed experimenter can acquire precision equipment that would have served proudly in a modern laboratory only a few decades ago and junk yards have mountains of scrap electronic components that would have been worth a fortune to that same lab.
This Electronic electroscope be possible under the circumstances, amount of charge of X is equal to amount of charge of Y and one of them must be negatively charged and other one must be positively charged.
This can be possible with following ways; 1. Both of the plates can be positively charged and have different amounts of charges.
They both attract electrons of the leaves.
They can have different charges; however, amount of positive charge must be larger than the negative charge. Since, there must be net positive charge to attract electrons from the leaves. Both of the plates can be negatively charged and have different amounts of charges. They repel electrons from top of the electroscope to the leaves.
They can have different types of charges, but amount of negative charge must be larger than the amount of positive charge to repel electrons from top of the electroscope to the leaves.
Special Cases Look at the given picture; when we put a charged conductor sphere into the neutral hollow, it is charged by induction. Negative charges are repelled to the outer part and positive charges stay at inner part.
We connect neutral electroscopes to the inner and outer part of the hollow.
Lea ves of neutral electroscopes rise that shows us it is charged by induction. When we touch negatively charged sphere into the inner part of hollow, we observe that sphere becomes neutral and electrons are repelled to the outer part of hollow.
If we connect neutral electroscope to the outer part of the hollow, leaves of it rises, since outer part of hollow is negatively charged by contact.
Be careful, inner part of hollow and sphere are becomes neutral. Picture given below shows the charged conductor. As you can see, same charges repel each other and they are located as far as possible to each other. Density of charges at left and right points of the conductor is larger than the middle part.
Charged plate attracts the neutral sphere. Here we see the example of charging by induction. Electrons move to the right side of the sphere and attraction force is larger than the repulsion, thus sphere moves toward to the plate.
If both plate and sphere are charged with same types of charge they repel each other. In the next section we will learn electrostatics forces between the charges and find the amount of forces.About: Electronic Engineer.
Living in northern germany. An Electroscope is a very old measurement device. It was invented around by the british scientist William Gilbert. He called it "versorium". I had the idea to combine it with the torsion wire principle.
A torsion wire is just a wire under mechanical tension. It is able to twist. electroscope, device for detecting electric charge invented by Nollet in There are various types of electroscopes. The most common has a cylindrical metal case closed by two round, flat, glass faces.
A charge sensor is mounted within the case and electrically insulated from it and is joined to an external terminal by a conductor, e.g., a metal rod. Demonstration experiments in electrostatics: low cost devices Figura 5 - A can electroscope at work, charged by contact with a cylindrical electrophorus.
Complete your Electroscope record collection. Discover Electroscope's full discography. Shop new and used Vinyl and CDs. The circuit is an electronic version of an Electroscope. Electroscopes are simple science instruments for measuring high voltage.
Electroscopes have been in use for hundreds of years. This FET charge-detector circuit is based on a much earlier circuit called "electronic electrometer" made . Pocket and Electronic Dosimeter Radiation Detectors.
Radiation Detectors. Top of Page, conductive-fiber electroscope with an ion chamber for detecting and indication integrated exposure to gamma and x-radiation. It has a thin wall which permits the penetration and detection of radiation.
, Charger, Electronic Dosimeters, SlipCase.