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Input Characteristics
Transistors can be operated in the switching mode. If base current IB is zero transistor is in an ON state behaves as a switch. If the base current IB is sufficient to drive the transistor into saturation, them the transistor behaves as closed switch. The transistor is a current driven device. The base current determines whether it is in ON state or OFF state. To keep the device in ON state there should be a sufficient base current.
NPN transistor circuit diagram input characteristics.
Q. Consider the op-amp circuit of Figure. Sketch the waveforms of v S and v o , if v S is a sinusoidal voltage source with a peak value of 2.
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Give four examples of natural insulating materials. Illustrations of the natural insulating materials are rubber, cotton, wood and mica.
Construction of inductor An inductor is usually constructed as a coil of conducting material, typically opper wire, wrapped around a core either of air or ferrous material.
Formulars.
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