• Support PF! Buy your school textbooks, materials and every day products via PF Here!

Alternating current wave prob

  • Thread starter Rasine
  • Start date
205
0
alternating current wave prob......

assume the wave is sinusoidal. suppose that each horizontal division (13) represents 1.0 ns and that each vertical division (11) represents 1 mV. what is the approx. rms voltage?

please help me solve this.

i am not so sure how to find rms, and if you do please explain it.

thank you.
 

ZapperZ

Staff Emeritus
Science Advisor
Education Advisor
Insights Author
2018 Award
35,127
3,927
Rasine said:
assume the wave is sinusoidal. suppose that each horizontal division (13) represents 1.0 ns and that each vertical division (11) represents 1 mV. what is the approx. rms voltage?

please help me solve this.

i am not so sure how to find rms, and if you do please explain it.

thank you.
http://hyperphysics.phy-astr.gsu.edu/hbase/electric/acres.html#c2

Look at the example for RMS current.

Zz.
 

berkeman

Mentor
55,747
5,821
Rasine said:
assume the wave is sinusoidal. suppose that each horizontal division (13) represents 1.0 ns and that each vertical division (11) represents 1 mV. what is the approx. rms voltage?

please help me solve this.

i am not so sure how to find rms, and if you do please explain it.

thank you.
Were you trying to post some waveform? 11/13/etc. Whatever. If you want the RMS, just use the Vpp measurement to get you there. Vp= sqrt(2)*Vrms, Vpp = 2*sqrt(2)(Vrms)


EDIT -- If you want a more complete explanation of RMS versus Vpp, we can oblige.
 
205
0
what is the Vp measurement? and how does it related to rms?
 

Related Threads for: Alternating current wave prob

Replies
1
Views
4K
Replies
2
Views
381
Replies
1
Views
1K
  • Posted
Replies
6
Views
2K
  • Posted
Replies
3
Views
6K
  • Posted
Replies
4
Views
2K
  • Posted
Replies
1
Views
845
  • Posted
2
Replies
36
Views
3K

Physics Forums Values

We Value Quality
• Topics based on mainstream science
• Proper English grammar and spelling
We Value Civility
• Positive and compassionate attitudes
• Patience while debating
We Value Productivity
• Disciplined to remain on-topic
• Recognition of own weaknesses
• Solo and co-op problem solving
Top