An AC source with ?Vmax = 145 V and f = 25.0 Hz is connected between points a an
ID: 1291052 • Letter: A
Question
An AC source with ?Vmax = 145 V and f = 25.0 Hz is connected between points a and d in the figure.
(a) Calculate the maximum voltages between points a and b.
_____________V
(b) Calculate the maximum voltages between points b and c.
_____________V
(c) Calculate the maximum voltages between points c and d.
_____________V
(d) Calculate the maximum voltages between points b and d.
_____________V
An AC source with ?Vmax = 145 V and f = 25.0 Hz is connected between points a and d in the figure. (a) Calculate the maximum voltages between points a and b. _____________V (b) Calculate the maximum voltages between points b and c. _____________V (c) Calculate the maximum voltages between points c and d. _____________V (d) Calculate the maximum voltages between points b and d. _____________VExplanation / Answer
(a) since, Z= 40+j*.185*25- j/(25*65*10^-6)= 40-610j
so, |Z|= 611.3 ohm
so, Current, I= 145/611.3= .237 A
so, Vab= .237*40= 9.48 V
(b) Vbc= .237*4.625= 1.1 V
(c) Vcd= .237*615.38= 145.84 V
(d) Vdb= 610.75*.237= 144.75 V
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