If a 10 kn rheostat is added in series with the bias resistor in Figure 14-56, what are the mini- mum and maximum voltage gains?

An inductive load of 100 Ohm and 200mH connected in series to thyristor supplied by 200V dc source. The latching current of a thyristor is 45ma.and the duration of the firing pulse is 50us where the input supply voltage is 200V. Will the thyristor get fired?

(B) Calculate the current through the zener diode for the given values of load resistance in this circuit: 1- Rioad=2 k2 2- R1oad =3 kQ Remes ww 2.2 kQ sonece = 30 V Vz 12.5 V

Q3-B) Determine and draw the output voltage for the diode limiter in Figure 4. +12 V N 0 -12 V---- Figure 4 R₁ www 10 ΚΩ +12 V R₂ 200 Ω R3 100 Ω out

Exam: Find the output waveform for the following full wave rectifier and the current pass through R1? 1:4 Di Voi= 0.7v 25v-- RL= 10kn %3! Dz Vo=0.7v D2

Draw V, for the networks shown below, the diodes are silicon (1) (2) R 1.0 kn +10 V +8 V Vi 0- Vin 0 R Vout 5V -5V -10 V -8 V Diodes are IN914.

-10 V Assuming the diodes to be ideal diodes O D1 and D2 are forward biased O D1 is forward biased and D2 is reverse biased O D1 and D2 are reverse biased O D2 is forward biased and D1 is reverse biased

V= 5 V What is the circuit in the given diagram called? clipper clamper doubler circuit full wave rectifier

Calculate the dc and ac components of the output signal across load RL in the circuit of Figure * Va = 150 V V, (ms) = 15 V V's V', (ms) R 500 2 Full-wave rectifier C, 15 μF C2 10µF RL 5 ka O vdc= 136.4V, Vac= 3.9V O Vdc= 163.4V, Vac= 9.3V Vdc= 13.4V, Vac= 9.9V O None of the above

An ammeter has been designed by indirect method with current ranges 1A, and 5A, if PMMC meter have internal resistance of 50 (2 and half scale current of 0.5 mA. Ra and Rb will be --- ohm Ra= 0.05005 , Rb=0.01001 Ra = 0.04004 , Rb = 0.01001 Ra= 0.05005 Rb= 0.04004