2. An N-type silicon sample has an arsenic dopant density of 10¹7 cm³³. Determine: a) The temperature at which half the impurity atoms are ionized. (finalize the equation for obtaining the temperature; no need to solve the equation. The same for part b) b) The temperature at which the intrinsic density exceeds the dopant density by a factor of 10. Assume Eg does not change with T. c) Assuming complete ionization, calculate the minority carrier density at 300 K and the location of the Fermi level referred to Ec.

what are two additional terms used to identify voltage?

Vdc0 U=12 V Circuit #1 Ried V LED www Ried_series 0.05 Vdc0 U = 12 V 0,04 Circuit 0.03 0.02 0.01 RED LED GREEN LE Set current to 10 mA LED voltages Given the circuit #1 presented above, answer the following questions: BLUE_LEC Red 0.5 1) Determine the value of the V₁ (voltage forward of the LED) for the LEDS RED, VDRED GREEN, VREEN and BLUE, VOBLUES when the current through the LEDs is 10mA, 2) Is the LED in Circuit #1, connected in the way that will be lighting up or not - Justify your answer Green 3) Calculate the value of the resistance Rled in Circuit #1, to ensure that a RED LED will have a current of 10 mA 1.5 2 25 Voltage across LED (V) 4) Calculate the value of the resistance Rled in Circuit #1, to ensure that a GREEN LED will have a current of 10 mA Blue 5) Calculate the value of the resistance Rled in Circuit #1, to ensure that a Blue LED will have a current of 10 mA 6) Given three LEDs, connected in series as shown in the Circui # 2 (below), calculate the value of the…

6) What happens to the reading of the ammeter if you reverse the connections? The voltmeter? CS Scanned with CamScanner