Question

uestion 1 An AC voltage has the mathematical function V(t) = 138 sin(393 t). What is the frequency of this AC voltage? 393 Hz 2,469 Hz 63 Hz 98 Hz 138 Hz

Answer 1

(A) Given AC Voltage Source v (t) = 138 sin (393) general voltage source - A sin (et) Compare ☺ and Vit) w 393 arf 393 62.57 Hz = 393 2x3.14 If a 63H2 option - So frequency correct (8) given resonant frequency for 609 Hz L=2m H Resonant frequency of the INTE Гіс ant 2x 3.148 609 0.0002 614 2x10 3x c = 6.83810-8 6 = 34.1 x 10 Capacitance = 34 MF option - conect