|Amplifier Teaching Aid (DED Philippinen, 86 p.)|
No. 1 If the base resistor is very small, -the -transistor will operate in the a. cutoff region b. active region c. saturation region d. breakdown region
No. 2 If a transistor operates in the middle of the load line, an increase in the base resistance will move the Q-point a. up b. down c. nowhere d. off the load line
No. 3 The saturation point is approximately the same as a. cutoff point b. lower end of the load line c. upper end of the load line
No. 4 When the collector resistance decrease in a base biased circuit, the load line becomes a. more horizontal b. more vertical c. fixed
No. 5 The first step in analyzing emitter biased circuits is to find the a. base current b. emitter voltage c. emitter current d. collector current
No. 6 If the emitter resistance decreases, the collector voltage a. decreases b. stays the same c. increases d. breaks down the transistor
No. 7 If the emitter resistance doubles in a VDB circuit, the collector current will a. double b. drop in half c. remain the same d. increase
a) What is the emitter voltage?
b) The collector voltage?
c) Draw the load line, plot the Q-point!
d) Redesign the circuit to get the Q-point in the middle of the load line.
Given: R1 = 12KW, R2 = 3KW, RC = 3.2 KW, RE = 1KW, VCE = 10V