Calculate mark to space ratio if the system is on for 4 sec and off time is 9 sec.(a) .54(b) .44(c) .45(d) .46This question was posed to me by my college professor while I was bunking the class.My enquiry is from Solid State Controlled Drives in division Introduction to Solid State Controlled Drives of Electric Drives

Calculate mark to space ratio if the system is on for 4 sec and off ti

1.	Calculate mark to space ratio if the system is on for 4 sec and off time is 9 sec.(a) .54(b) .44(c) .45(d) .46This question was posed to me by my college professor while I was bunking the class.My enquiry is from Solid State Controlled Drives in division Introduction to Solid State Controlled Drives of Electric Drives
Answer» The correct option is (b) .44 Explanation: MARK to SPACE is Ton÷Toff. It is the ratio of time for which the SYSTEM is active and the time for which is inactive. M = Ton÷Toff = 4÷(9) = .44.

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