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FET is a voltage controlled device. FET means Field Effect Transistor.
Moving coil meter. i.e., the torque is proportional to the coil current and the instrument scale is linear. The torque due to the coil current is opposed by the reaction torque of a torsional spring such that the final rotational displacement of the coil is proportional to the measured current.
ADVANTAGES ?
These instruments are free from hysteresis and eddy current losses.
They can be used on both AC and DC.
They are used as transfer instruments.
The magnetic tapes are made up of ferromagnetic material.
The efficient method of speed control of ac motor is by using triac-SCR
According to Boolean Algebra A=A
clock frequency of 8085 microprocessor is 3 MHz.
A flip flop 2 stable state.
Varactor diodes are used in tuner.