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+//Problem 14.09: An alternating voltage is given by v = 282.8 sin 314t volts. Find (a) the rms voltage, (b) the frequency and (c) the instantaneous value of voltage when t = 4 ms
+
+//initializing the variables:
+Vmax = 282.8; // in Volts
+w = 314; // in rad/sec
+t = 0.004; // in sec
+
+//calculation:
+//for a sine wave
+Vrms = 0.707*Vmax
+f = w/(2*%pi)
+v = Vmax*sin(w*t)
+
+printf("\n\n Result \n\n") 
+printf("\n (a)rms value = %.0f V",Vrms)
+printf("\n (b)frequency f = %.0f Hz",f)
+printf("\n (c)instantaneous value of voltage at 4 ms = %.1f V",v)
+\ No newline at end of file