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35. A source of alternating emf …

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35. A source of alternating emf of frequency 50Hz is connected in series with a resistance of 200 Ω, an inductance of 100mH and a capacitance of 30μF. Does the current lead or lag the emf and by what angle?

Posted by Vishmitha Shetty 6 years, 9 months ago

CBSE > Class 12 > Physics

1 answers

Pooja Bhatia 6 years, 9 months ago

V=50Hz , w(omega)=2πv=100π....(1) Xc=1/wC=333.34, XL=wL=10.....(2) {If Xc is greater than XL then the current is said to be capacitive causing the current to lead} Tan()= (Xc-XL)/R

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