Electronics - Alternating Current vs Direct Current - Discussion

Discussion Forum : Alternating Current vs Direct Current - General Questions (Q.No. 33)
33.
What is the rms voltage value of an ac signal whose peak oscilloscope display uses 3 major divisions above the zero setting? (V/cm = 5)
5.3 V
10.6 V
15.0 V
21.2 V
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
2 comments Page 1 of 1.

Syed Shakeeb said:   3 years ago
5V/cm for 3 divisions we have 5 * 3 = 15v Vrms = 0.707 * Vp.
Vrms = 0.707*15,
Vrms = 10.6.

ANWESHA said:   1 decade ago
1 major division = 5 small division.(5v).

3 major division = 5*3=15v.

rms voltage = 15/1.414=approx 10.6.

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