In addition, the electric force plays an essential role in maintaining the structure of matter, by keeping the nucleus of the atom together, and by preventing electrically neutral atoms from collapsing into each other. The electric force is also responsible for the phenomenon of electricity, including lightning, static electricity, and the flow of electrical current in a conductor such as a wire. The electric force is responsible for maintaining the cohesion of atoms and molecules, and keeping atoms and molecules together, even though electrically neutral atoms tend to repel each other. A small part of the magnetic flux produced by coil-1 links to coil-2. When the circuit of coil-1 completes, the current flow through the coil-1 and produces magnetic flux. ![]() ![]() We consider two coils, coil-1 and coil-2 placed near each other. The electric force is carried by elementary particles called electrons, protons and neutrons. This induced EMF is called mutually induced EMF. The electric force is one of the four fundamental forces (the others are the strong force, the weak force, and gravity) of nature, and is responsible for a wide range of phenomena, such as the interactions between the components of atoms and molecules, and the formation of molecular bonds and chemical compounds. ![]() The electric force plays a major role in determining the internal properties of most objects encountered in daily life. A small magnet is imbedded in the projectile, as shown in Figure P31.14. ![]() The electric force is a physical force exerted by electrically charged particles, and is the force responsible for a number of phenomena in electromagnetism. An emf has been used to measure projectile speeds up to 6 km/s.
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