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When reverse bias is enhanced the electric field at the junction also enhances. At some stage the electric field becomes so high that it breaks the covalent bonds building electron, hole pairs. Therefore a big number of carriers are created. This causes a large current to flow. This mechanism is known as Zener breakdown.
A 1.6 kg man swings from a 2 meter rope at an angle of 45 degrees after swinging 20 degrees past the center point, the rope is cut by a razor. The man goes flying through the air
A lever of the second class Use a uniform wooden bar about 1 m long, 4 cm wide and 5 mm thick. Drill a hole near single end, in the centre of the width dimension. Also drill a
Explain the Lenz Law An induced current always flows in a direction so that its electromagnetic field opposes the change in magnetic flux producing it. This is embodied in the
what is sound waves
The formula y=A cos ?(t-x/v), describes a wave that moves in the +x direction along a stretched string. Show that this formula is a solution of the wave equation?
derive an expression for density of states and hence deduce an expression for carrier concentration of metals
Two steel balls are at a distance S from one another. As the mass of ONE of the balls is doubled, the gravitational force of attraction between them is: a) Quartered b) H
What is Electron Holography? Electron holography is an application of holography procedures to electron waves quite than light waves. Electron holography was invented through D
What do you understand by rectifier? Illustrate working of half wave and full wave rectifiers with diagrams. Show the expression for its efficiency? Define a transistor and illu
Question Put the different types of light in order from lowest frequency to highest frequency. Feedback: These are all instances of electromagnetic radiation. Elect
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