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MDCAT
Physics
2021

Physics · Electronics

Work through this past-paper style MCQ, then read the full explanation. Practice more physics questions on mMCQ with adaptive practice and topic analytics.

Question

Consider a peak rectifier fed by a 60-Hz sinusoid having a peak value Vp = 100 V. Let the load resistance R = 10 kn. Calculate the fraction of the cycle during which the diode is conducting.

Options
  • A

    1.06 %

  • B

    2.06%

  • C

    3.18%

  • D

    4.28%

Explanation

Option C is correct since the best explanation is :
w Δt ~ √(2Vr/Vp)
= √(2 X 2/100)
= 0.2 rad or 3.18% of the cycle

As per the calculation, this option is incorrect.Option C is correct since the best explanation is :

w Δt ~ √(2Vr/Vp)

= √(2 X 2/100)

= 0.2 rad or 3.18% of the cycle

As per the calculation, this option is incorrect.Option C is correct since the best explanation is :

w Δt ~ √(2Vr/Vp)

= √(2 X 2/100)

= 0.2 rad or 3.18% of the cycle

Option C is correct since the best explanation is :

w Δt ~ √(2Vr/Vp)

= √(2 X 2/100)

= 0.2 rad or 3.18% of the cycle 

As per the calculation, this option is incorrect.Option C is correct since the best explanation is :

w Δt ~ √(2Vr/Vp)

= √(2 X 2/100)

= 0.2 rad or 3.18% of the cycle

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Tagged under Physics · Electronics · 2021