What is the formula for step up chopper?

1.	What is the formula for step up chopper?
A.	V(1-‚âà√≠¬¨¬±)
B.	V/(1-‚âà√≠¬¨¬±)
C.	‚âà√≠¬¨¬±V
D.	v/‚âà√≠¬¨¬±
Answer» C. ‚âà√≠¬¨¬±V

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