Which curve represents life of the lamp? DE C B % NORMAL VOLTS O curve B O curve D O curve C curve A % RATED QUANTITIES

QUESTION 1 By referring to Figure 1, determine, (a) Whether each diode is forward-biased or reverse-biased. (b) Voltage across and current through each diode. 100 V 10 Ω 56 N 8 V (b) 10 kN 10 kn 1.0 kſ2 1.5 kN 4.7 kf2 30 VE E 10 V 20 V 4.7 k2 (c) (d) Figure 1

Q1.Three-phase half-wave controlled rectifier is shown in the figure below.Delivers 250W power with resistance R=23 ohms if Vmax-100V,what is the fire delay angle? Vran Sin(wt) Vras Sinfut-120) DK Vros Sinfwt+120) R Answer =24

vs=10v   find vz and iz

# S1 o'â ww R1 10K R2 1K OK R4 2208 www Q1 2 Figure 3-11. SCR as a Half-wave Rectifier. Vac

Indicate the functional elements of the following measuring devices shown in Figure

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