A black hole can have a positive charge, negative charge, or no charge. It all depends on the charges of the material that fall into it.
In a photocell, the charge of a hole is positive. Holes are essentially empty spaces in a crystal lattice where an electron has moved away, leaving behind a positive charge that can move through the material similar to a positively charged particle.
There is no such concept of a negative black hole outside the fictional computer game involving Sentry Catapult.
When there is an electrical current, there is a movement of some charged particle. This may be any kind of particle - an electron (negative), a hole (positive), an ion (positive or negative), or some other particle.
proton has the positive charge and holes came in the picture during the discovery of diodes. It is also important in the phenomenon of drift velocity(electricity related process) and scientists consider that when a electron moves from its place to the other side of diodes a vacant place is created where there was electron before so that vacant site is referred as hole and it is taken as having positive charge because as the electrons move the other side of diode more holes are created as deficiency of electrons and that side of diode behaves as positive side and other side of diode as the accumulation of negative charges (electron) behaves as negative side.
Yes, black holes are an example of negative pressure. This is because they exert gravitational force so strong that nothing, not even light, can escape from them, creating a region of extreme gravitational pressure.
A hole in a semiconductor has a net positive charge because it represents the absence of an electron, which has a negative charge. When an electron moves from its position to fill the hole, it leaves behind a positively charged location or "hole." This movement of electrons creates a current flow in the material.
In a photocell, the charge of a hole is positive. Holes are essentially empty spaces in a crystal lattice where an electron has moved away, leaving behind a positive charge that can move through the material similar to a positively charged particle.
It might help to consider a hole as a positive particle (or rather, quasi-particle). Any positive particle gets attracted by a negative charge, and repelled by a positive charge. Of course, in reality it is the electrons that move, to fill out the hole - but the effect is the same.
There is no such concept of a negative black hole outside the fictional computer game involving Sentry Catapult.
The black hole property that determines the Schwarzschild radius of the black hole is that it has mass but no angular momentum nor electric charge.
When there is an electrical current, there is a movement of some charged particle. This may be any kind of particle - an electron (negative), a hole (positive), an ion (positive or negative), or some other particle.
ANY positive number is greater than any negative number. Imagine you are digging a hole, and piling up the dirt you remove from the hole. The hole represents negative numbers- it goes lower than the surface. The piled up dirt represents positive numbers- it is higher than the surface. The surface is zero- neither positive or negative.
Three key characteristics of a black hole are its mass, charge, and spin. The mass determines the gravitational pull of the black hole, affecting how it interacts with surrounding matter. Charge refers to the electric charge of the black hole, which can influence its electromagnetic interactions. Spin describes the rotation of the black hole, affecting the space-time geometry around it and leading to phenomena like frame-dragging.
Sorry, no.
a. attracted to the negative terminal of the voltage source as an electrons leave its orbit it leave a hole which is promptly filled by another electron. so as electron flow one way the holes flow the opposite direction. in electronics current flow from positive charge to a less positive chargeclassified as a "hole". Although it doesn't really *exist, it is thought to have the same charge as an electron but opposite polarity.
proton has the positive charge and holes came in the picture during the discovery of diodes. It is also important in the phenomenon of drift velocity(electricity related process) and scientists consider that when a electron moves from its place to the other side of diodes a vacant place is created where there was electron before so that vacant site is referred as hole and it is taken as having positive charge because as the electrons move the other side of diode more holes are created as deficiency of electrons and that side of diode behaves as positive side and other side of diode as the accumulation of negative charges (electron) behaves as negative side.
Please note that the closest known black hole is at a distance of 3000 light-years. Such a black hole cannot directly "have a positive influence". The supermassive black hole in the center of most galaxies is believed to have an important role in the galaxy formation - so it may have had an important influence in the remote past.