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Calculate the value measured by Moving Iron when a sinusoidal voltage signal V(t)=20sin(ωt) is applied to it.(a) 14.14 V(b) 20.15 V(c) 16.18 V(d) 22.18 VThe question was posed to me in quiz.Enquiry is from Electric Traction Services in portion Traction Drives of Electric Drives

Answer»

The CORRECT choice is (a) 14.14 V

To explain: Moving iron instrument MEASURES the r.m.s value of the INPUT SIGNAL. The r.m.s value of the sinusoidal signal is 20÷√2=14.14 V.



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