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Calculus and Beyond Homework Help
What is the power of unit step signal with magnitude A
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[QUOTE="jaus tail, post: 5618944, member: 506554"] [h2]Homework Statement[/h2] Find power of signal A u(t) A is constant like 5, 6 some value.[/B][h2]Homework Equations[/h2] Power is integration over -T/2 to +T/2 of [x(t)][SUP]2[SUP][/SUP][/SUP] dt The whole divide by T [h2]The Attempt at a Solution[/h2] Power is integration over -T/2 to +T/2 of [A u(t)][SUP]2[/SUP]dt[/B] The whole divide by T So 1/T integral A[SUP]2[/SUP] dt...integral limits are -T/2 to +T/2 This comes as 1/T A[SUP]2[/SUP] integral dt integral dt is t. limits are -T/2 to +T/2 so integral dt = [T/2 - ( -T/2) ] which becomes T so Poewr is 1/T * A[SUP]2[/SUP] * T which gives A[SUP]2[/SUP] But book answer is A[SUP]2[/SUP] /2 Where did the divide by 2 come from? [/QUOTE]
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Calculus and Beyond Homework Help
What is the power of unit step signal with magnitude A
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