In MOSFET measurements, if the threshold voltage when the drain voltage vd is 0.1v is 0.4v and the threshold voltage when the drain voltage vd is 1.0 is 0.22v, obtain the drain driven barrier lowering (DIBL) of this device.
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- A Nichrome heater dissipates 500 W when the applied potential difference is 110 V and the wire temperature is 800°C. What would be the dissipation rate if the wire temperature were held at 200°C by immersing the wire in a bath of cooking oil? The applied potential difference remains the same, and α for Nichrome at 800°C is 4.00×10-4/K -1.The ideal battery in Figure (a) has emf 8-6.2 V. Plot 1 in Figure (b) gives the electric potential difference V that can appear across resistor 1 of the circuit versus the current i in that resistor. The scale of the Vaxis is set by V, 18.9 V, and the scale of the i axis is set by i, 3.21 mA. Plots 2 and 3 are similar plots for resistors 2 and 3, respectively. What is the current in resistor 2? 64 Number (a) Units *(mA) (8)The resistivity of gold at room temperature is 2.35 x 10-8 ohm-m. The temperature coefficient alpha = 3.98 x 10-3/K. What will be the resistivity of a piece of gold whose temperature is 150°C above room temperature?
- The internal resistance of a high voltage power supply is 4 MO and the output is set so that the potential difference across the output when on open circuit is 1800 V? A load resistor RL = 500 kn is connected across the supply. What is the current flowing in the load resistor?You are asked to design a circuit in which a 100-2 resistor will carry a current of 1 mA. The circuit will operate in an environment at room temperature. Calculate the minimum value of the surface area of the resistor if the resistor temperature is not to exceed 400 K.what is the answer!?
- A current of 0.228 A flows through a(n) 8.22 Q resister. Calculate the voltage drop across the resister. Express your answer to three significant figures. The voltage drop is Volts.An iron wire with a diameter of 2 mm will be used to connect a voltagesource to a 100 kΩ resistor. Numbers for conductivity and resistivity can be found inthe textbook.(a) What is the current needed to flow through the resistor if the resistor is to produce1 mW of heat?(b) What is the voltage drop across the 100 kΩ resistor if it has the current you foundin (a)?(c) How long would your iron wire have to be to produce a 0.01 V drop along thelength of the wire, assuming the current you found in (a)?(d) How much power is lost through the iron wire (assume the length you find in (c))?Problem: In a test to determine the resistance of a single-core cable, an applied voltage 2.5 V was necessary to produce a current of 2A in it at 15° C. of (a) Calculate the cable resistance at 55° C if the temperature coefficient of resistance of copper at 0°C is 1/235 per" C. (b) If the cable under working conditions carries a current of 10A at this temperature, calculate the power dissipated in the cable.
- Given the tolerance on β for the thermistor, what is the absolute value of the accuracy of the reading in °C that you will get on the thermistor at 30°C? (Type in a three-decimal number) Given the tolerance on β = 3977 (+ or - 0.75% at 25°C for a 5000 ohm resister )The resistance RT of a platinum varies with temperature T (0C), as measured on the constant-volume gas thermometer according to the equation RT = R0(1+AT+BT2). Where A=3.8 × 10-3 0C-1 and B= -5.6×10-7 0C-2. Calculate the temperature that would be indicated on a platinum thermometer, when the gas scale reads 2000C.A wire of length 1 km, has a conductance of 0.6 mho. What is theconductance of the same wire which is 3 km long?