BICSI Registered Communications Distribution Designer - RCDD RCDD-002 Question # 40 Topic 5 Discussion

BICSI Registered Communications Distribution Designer - RCDD RCDD-002 Question # 40 Topic 5 Discussion

RCDD-002 Exam Topic 5 Question 40 Discussion:
Question #: 40
Topic #: 5

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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