A delayed full-wave rectified sinusoidal current has an average value equal to one – third its maximum value. Find the delay angle.

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SSC JE EE Previous Paper 8 (Held on: 28 Oct 2020 Morning)
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  1. cos-10.047
  2. cos-10.678
  3. cos-10.866
  4. cos-10.386

Answer (Detailed Solution Below)

Option 1 : cos-10.047
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Detailed Solution

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Concept:

Considered Vm is the maximum value of AC input voltage of converter and V0 is the average output voltage converter and α is delay angle.

For single-phase semi converter or delayed full-wave rectifier,

Calculation:

Given that,

Hence, the equation becomes,

or,

cos α = 0.047
α = cos-1(0.047)

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