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Exam RCDD-001 All Questions

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Exam RCDD-001 topic 1 question 6 discussion

Actual exam question from BICSI's RCDD-001
Question #: 6
Topic #: 1
[All RCDD-001 Questions]

Two sinusoidal signals have the same amplitude (A) and the same frequency (f). They differ in phase by 180 degrees. If these two signals are added together, the result is a sinusoidal signal having an amplitude of:

  • A. Zero
  • B. 0.707A and a frequency of f
  • C. A and a frequency of 2f
  • D. 2A and a frequency of f
  • E. 2A and a frequency of 2f
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Suggested Answer: A 🗳️
by waldo31 at May 25, 2022, 3:51 a.m.

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CUB90
1 year, 5 months ago
TDMM page 1-23
upvoted 1 times
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HEVY_D
1 year, 11 months ago
TDMM page 139 (in the digital version)
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waldo31
2 years, 11 months ago
If the phase difference is 1/2 of the period w/c means 180 degrees, two sinusoids is considered 180 degrees out of phase whose sum is ZERO ---TDMM page 139
upvoted 3 times
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