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- Resislance, ef the uoltmelei is lo000 ohm to increcte songe of uoltmeler fuom 25V lo 250 V, HeSie lance connected in setes is- O 990 ohm O 999à ohm ☺ gooo0 ohm d) 90 ohm.A 15.5 V battery is connected to a 102 Ωresistor.Neglecting the internal resistance of thebattery, calculate the power dissipated in theresistor.Answer in units of W.ASAP
- A NMOS device has a transconductance K₁ -0.4 mA/(V^2). The device has a threshold voltage of 1.0V, the gate voltage is set to 4.0V. A drain voltage of 0.8V has been applied. Find the drain current in mA.. Your Answer:6. (a)Use voltage division to determine the voltage vo across the 400resistor. (b)Use ve from part (a) to determine the current through the 4002resistor, and use this voltage and current division to calculate the current in the 3002resistor. 60 V 400 www +% Dov 200 70 (2 www 30023 5002 w 1002a) Find the resistance of a 1 cm 3 pure silicon crystal. b) What is the resistance when the crystal is doped with arsenic if the doping is 1 in 10 9, that is 1 part per billion (calculate according the given value on the picture)
- A potentiometer wire of length 10 m and resistance 10 N is connected in series with a resistance box and a cell of e.m.f 2 V and negligible internal resistance. What resistance must kept in the box if the potential drop across the wire is to be 10 mV ? What is the potential gradient in mV per mm ?An electronic device designed to operate at any temperature in the range from 10.0C to 55.0C contains pure carbon resistors. By what factor does their resistance increase over this range?A new material is found to be superconducting below 77 K. How much resistance will a 75 mm long sample of this material have if it is at a temperature of 69.3 K while connected to a 6.4 V AC-power supply? R = How much thermal energy will it generate?Thermal energy generated =
- a) Find the resistance of a 1 cm pure silicon crystal. b) What is the resistance when the crystal is doped with arsenic if the doping is 1 in 10°, that is 1 part per billionA parallel plate capacitor of 1.45 10 Farads Connected to a power supply that keeps a 36 V plates a constant potenhal difference of behween the → How Much chage is on each plate? Now, a a of matenial (dielectnie constant 2.75) is placed behreen the piece plales, complekely filling the space in behween them. increase or decrease during he inserhon? How > How Much did he energy much was stored the capacitor before and after? inHW/2 0, If the switch in Fig. 10 opens at 1 , find v(7) for 7 = 0 and we(0). Answer: 8¢V, 533 1. =0 UV P