27 Write, 2 application of treating effect of
current
Answers
Answer:
Explanation:
1). The application of FETs as the switches in analog circuits is a direct consequence of their mode of working. This is because when the Gate-Source voltage, VGS is zero, n-channel FET will operate in saturation region and will act like (almost) a short circuit. Thus the output voltage will be zero (Figure 1). On the other hand, if a negative voltage is applied between the gate and source terminals i.e. if VGS is negative, then the FET operates in its cut-off or pinch-off region.
2). Application of heating effects of current Electric heater and water heater. When these appliances are in connection with the supply of electricity they become hot but wires remain cold. They consist nichrome which has high resistivity and hence high resistance. Heat produced is directly proportional to the resistance of material through which the current flows. Electric bulb.