When does the PLC counter instruction increment its current count? O Whenever the count input transfers from an on state to an off state O Whenever the count input transfers from an off state to an on state O none of the above

(b) (0) State the instrument that is used as a null detector in the AC bridge. Explain the principle of null deflection. (ii) The AC bridge shown in Figure Q.2(b) is used to measure the impedance Z.. If the bridge is balanced for oscillator frequency 5 kHz, what is the impedance for ? AC, f R-300 Q R-400 Q C-0.106 F A detector L-9.35 mil R-4000 Figure Q.2(b): AC bridge

R +Vcc -Vcc C Vout R R a. Quantify how the resistors and the capacitor influence the output voltage of the circuit, Vout. What are the upper and lower limits of Vc? b. Howlong does it take for the capacitor to be charged from minimum to maximum voltage and vice versa?

Q5/ Design a Colpitts oscillator as shown in figure below with 10 MHz output frequency. Find the values of C1, C2 and L1, then plot the waveforms at points P1 and P2. +Vcc R1 R4 P2 Cout Q1 Cin P1 R2 Re * Ce 升C1 * C2 Colpitts oscillator www.circuitstoday.com Your answer Q6/ Design a delay circuit using the IC 555, such that the delay between input and output to be 2 minutes. Draw the input/output waveforms. العربية الإنجليزية

5. Determine Leq at terminal a-b the circuit below. Ans.7.778 mH 10 mH 60 mH 25 mH 20 mH a o o b ele 30 mH

Subject: Analog Electronic and Circuit Please Solve this question

Q/ Draw the input and the output waveform of the circuit below and analyze the signal flowing in both half-cycles Using two different colors, and label the voltage on the waveform, then determine Vay and Vrms (Vin=5V, frequency= 1kHz) 17 ww