Sunday, March 8, 2009

What will this give as a graph?

Voltage (V) Current (mA)
0 0
1 20
2 30
3 65
4 98
5 174
6 280
Posted by at

25 comments:

  1. computationMarch 8, 2009 at 6:13 PM

    the following information given will give a curve when plotted onto a graph sheet.

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  2. Swanky ThingMarch 9, 2009 at 11:02 AM

    to me the following information can give a best fit straight line graph. Even though the values are not in a constant increase on the y axis, {which is the current (mA)} the graph can still be plotted as best fit straight line graph. Correct me if am wrong.......

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  3. It's meMarch 9, 2009 at 11:12 AM

    well i think it would not be a best fit straight line because if u go to plot the x value against the y value, the x value are increasing by a contant of 1 and the y value doest not increase by a constant therefore when the graph is being plotted the graph will be that of a curve and not a best fit straight line

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  4. angelMarch 9, 2009 at 1:27 PM

    wel i took the liberty of sketching the graph and i got a curve, starting at the origin where initially it had a small increase on the y axis and until the last two co-ordinats it had a significant increase.

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  5. angelMarch 9, 2009 at 1:37 PM

    It depends on how you labeled your axes:

    1) If voltage is the x-axis and current is the y-axis, then the slope = y/x

    or Current/Voltage = 1/R (use v=IR to solve -> R=V/I, 1/R=I/V), thus resistance = 1/slope

    2) If voltage is y-axis, and current is x-axis, then slope = voltage/current = resistance, thus R = slope in this case

    but in this case voltage is on the x-axis thus the slope = y/x

    or Current/Voltage = 1/R

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  6. Hellscream!!!March 9, 2009 at 5:33 PM

    well, miss angel i also sketched a graph...turns out u was right...i did get a curve, but it was a best fit.

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  7. poopsiepumkinpieMarch 9, 2009 at 6:20 PM

    when this graph is s etched, u would obtain a curve because as V and I inceases, it begins to bend which indicates that a change in V causes a smaller change in I at larger values of V. i.e. the resistance (V/I) increases as V
    increases.

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  8. DarkyMarch 10, 2009 at 12:48 PM

    I think it will give you a straight line depicting that as voltage increases the current will also increase

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  9. ghetto_celebMarch 11, 2009 at 5:17 PM

    i sketched the graph and i got a curve. plotting the graph with the voltage on the y-axis, i notice the graph begins to curve at 4 volts showing that the current begin to have greater increases from this voltage

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  10. suspect RMarch 11, 2009 at 6:29 PM

    i would say that values given will give a curve because when you sketch the graph you will get a curve.if a best fit line is drawn only about two points will connect on the line and on the right side of the line the remainder points will be there and none on the left hand side, best fit line is supposed to connect to at least 3 points and the reminder points on the right hand and left hand side should be even

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  11. damonMarch 12, 2009 at 3:19 PM

    hi miss

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  12. damonMarch 12, 2009 at 3:35 PM

    i have a mental block for graphs i cant seem to understand them

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  13. damonMarch 12, 2009 at 3:40 PM

    the only how i knew this would have been a curve is when i did it can you look at values and instantly say it is a curve or a straight line ?

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  14. boy-bMarch 14, 2009 at 10:12 AM

    it wouldnt give a straight line because the difference of the increasing values are different with respect to the voltage values and current values.
    it wod give more like a best fit curve.
    if the difference of the values were in proportion it would give a straight line

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  15. boy-bMarch 14, 2009 at 10:17 AM

    using this in electricity what is the graph showing? resistance?
    wat does a v/i graph show?

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  16. WeezyMarch 14, 2009 at 6:22 PM

    well boy-b the graph shows with an increase in voltage V there will be an increase in current I but the values isn't proportional because of resistance

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  17. animechicMarch 14, 2009 at 6:27 PM

    boy b the value of v/i = resitances but no 2 points on the graph will have the same resistance since the resulting shape of the graph is a curve

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  18. WeezyMarch 14, 2009 at 6:28 PM

    Resistance: opposition to electric current: the opposition that a circuit, component, or substance presents to the flow of electricity.

    Symbol R
    resistance is necessary for a current to flow..

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  19. mysticwings*March 17, 2009 at 9:32 AM

    well i know from form 5 physics that the quantity mentioned first goes on the y-axis. so although the problem was not worded i still went on to put the voltage on the y-axis, when i sketch the graph. according to my sketch i got a best fit striaght line!!!

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  20. mysticwings*March 17, 2009 at 9:39 AM

    i really wonder though how 'angel' got a curve when she sketched it. if i made a mistake can someone correct me or her plzzz

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  21. small manMarch 17, 2009 at 7:01 PM

    when i plot this graph i got a a curve, non linear graph. where the points 0 to a 100 was scattered and the last two points were more linear i find. i polt this graph on excel.

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  22. Low riderMarch 19, 2009 at 5:30 PM

    I agree with the people who said it will turn out to be a curvr, but the only way i see it would be a straight line is if the graph was turned into a log graph

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  23. empressApril 7, 2009 at 12:45 PM

    the graph will definitely give a curve that look like a tick.

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  24. Swanky ThingApril 8, 2009 at 12:47 PM

    I was wrong in my first comment, when you plot the graph, it will give a curve

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  25. Low riderApril 11, 2009 at 10:35 AM

    Right it seems that we all are beginning to believe it will give a curve.

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