Author Question: How can I rearrange this formula 1/R=A e -B/T to find the constant e and the other constant B? (Read 3138 times)

geoffrey

  • Hero Member
  • *****
  • Posts: 880
I'm conducting this thermometer experiment with the thermistor. I recorded the values on the voltmeter and the ammeter then found the resistance of the thermometer. I was then asked to plot an appropriate graph that would help to determine the constants e and B. I'm terrible at transposing formulas so if someone transpose the above formula, I will be able to continue from there. PLEASE HELP!!!!



Hawke

  • Hero Member
  • *****
  • Posts: 679
e is a constant.

To solve for B, first divide by A,

1/RA = e^(-BT)

Then take the natural log,

ln(1/RA) = -BT

Divide by -T,

-1/T ln(1/RA) = B

EDIT: If you want to plot a graph and solve this graphically instead of analytically, you'll first need to plug in your data and then try to use a best fit curve to approximate a trend. From there, based on the equation of that curve, you can determine B. I recommend Graphical Analysis for this - it's a fairly easy program to use and it can fit a variety of curves, without being overly complicated.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

For a complete list of videos, visit our video library