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- 05 For the given npn BJT circuit if ß = 150, find: IB , IC , IE , VBE, VCE, and VCB. Re 100 2 Rp Vcc 10 V 10 kfN BB 5 VCalculate phase shift between VR and VC . Change the input voltage from 5 to 10 , 15 , 20 volts. If we increase the input frequency from 1kHz to 5 kHz, what is the phase shift between the voltage Vc and current I?A thermocouple has an output e.m.f. as shown in the following table when its hot (measuring) junction is at the temperatures shown. Determine the sensitivity of measurement for the thermocouple in mV/°C Temperature (°C) 62 84 Voltage (mV) 20 45 1.14 0.88 2.27 4.40
- For the oscillator circuit shown below, C1 = 15 pF and C 2= 180 pF and L = 1µH. a) Name the type of LC oscillator b) Calculate the frequency of oscillation. c) If the amplifier circuit is biased to provide a gain of 10, will the circuit oscillate? Why or why not? Vcc R4 Cout Q1 Cin R2 Re * Ce C1 * C2 ww-Q Prove That the deivative How of :- is equal to defination of LC frequeney.Contd) in figure below 18 The amplifies uses a voltage shoun Sousce with Rs=g0on and with following pasameters – Im=0-2 AN, T = 100n, Ybe=IK, e= BOK, ñ model Ce= 200PF, C, =4pF. Draw the hybsid n and calculate fe and f7. Vcc GOK Vo Rs 12K 330N
- Q/14/Explain by block diagram and equations the indirect method of Demodulating FMDesign p-type attenuator to give 20 de attenuation and to have characteristic impedance of 100 28. Consider the cireuit shown in fipme, Whet is f he steady- skale value of vc of der the switch opens? Determine how lone it takes af dor the switeh opens befor Ve is within 2 percent of its steady-slade value. to mAO 3IK