« previous next »

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 1368 times)

geoffrey

  • Hero Member
  • *****
  • Posts: 880
on: Oct 4, 2013
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
Reply #1 on: Oct 4, 2013
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
« previous next »
 

Did you know?

Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.

Did you know?

The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

Did you know?

Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

The Speed of Light Is Constant The Speed of Light Is Constant
How to find the equation of a line passing through two points How to find the equation of a line passing through two points
Determining the order and rate constant of an irreversible first-order reaction Determining the order and rate constant of an irreversible first-order reaction
Your nose runs like a leaky faucet and turns beet red from constant wiping Your nose runs like a leaky faucet and turns beet red from constant wiping
Half-life formula Half-life formula
Draw the electron dot formula for the perchlorate ion, ClO4-. How many nonbondin Draw the electron dot formula for the perchlorate ion, ClO4-. How many nonbondin
Video: Rena arc construction

For a complete list of videos, visit our video library