1. Find the equivalent resistance of the following circuits at different viewpoints „AB", „CD","DE“ and ,CE“. 1 k2 C 2 kΩ 3 k2 5 k2 O D 10 k2 1.5 k2 5 k2 Bo

V1 R1 V2 Da Db R2 www V3 Given that R1=2k, R2=1k, and Da and Db are Si Diodes: a. What is V3 in terms of V1 when Da is ON? b. What is V3 in terms of V1 when Db is ON? c. What is V3 in terms of V1 when Da and Db is OFF?

Calculate the expression of the output resistance in terms of R in the circuit given below (hint: You can also find the resistance value by using one of the simulation methods. You can give the value instead of R and see the result on the screen.

A strain gauge with GF=2.97 and Ra = 5002 is used in the bridge in Figure Q1. The bridge resistors are R1 = R2 = 5002 and the dummy gauge has Rp = 5002. If a strain of 1200 um/m is applied, find the bridge offset voltage given that V, = 15V. If a new strain gauge with GF = 2.16 is used to replace the existing one, how much strain is needed to produce the same offset voltage? R1 R2 Vs Rp RA

A circuit using the BJT is shown in the below figure, the value of B is +10 V wnlabob 5 kQ VB = 1 V VE = 1.7 V %3D 100 k2 slon ro of lo 5 k2 pribivoio -10 V

What is the equivalent resistance between points A and B when R = 26.1 Q? 5R R 5R A 4R Select one: O A. 46.06 O B. 39.15 OC. 133.11 O D. 80.91 O E. 43.50

The circuit in the figure is connected to a voltage source U.When S is in the off position, the current I = 6 A and R = 45.a) How large is the total replacement resistance of the circuit.The power switch is turned on. The voltage U remains unchanged.b) How big will you be when S is on.c) How large will the circuit's replacement resistance be now.d) What effect is developing in the circuit now

3. For 6 = 100, VBE = 0.7 V and VE = 4 V, determine a. Ic b. VB C. VCE d. R2 VCc 18V Vcc R1 R3 :1 ΜΩ 2kQ 2 Q1 BJT_NPN_VIRTUAL 3 R4 1.0kQ R2 -w-