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Secondary Winding

current in ci...

Question

current in circuit falls from 5.0A to 0.0A into 0.15. If an average emfof 200V induced give an estimate of self inductance of the circuit

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Solution

$C h a n g e i n c u r r e n t = d I = 0 - 5 = - 5 A . T i m e i n t e r v a l = d t = 0.15 s e c o n d e = 200 V I n d u c e d e m f i n d u c e d = e = - L \frac{d I}{d t} T h e r e f o r e 200 = L \frac{5}{0.15} o r L = 200 \times \frac{0.15}{5} = 6 h e n r y .$

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