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nokia8650
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See file below:
http://img228.imageshack.us/img228/5797/screenshot20100527at215.png
This is for a biological membrane, but the principles are the same. I am asked what the value of the initial voltage, Vt is.The options are:
What was the value of the initial voltage, Vt?
A. +58 mV
B. -58 mV
C. +40 mV
D. +116 mV
E. It cannot be determined.
I can see that the time constant is 120ms, and hence the internal resistance is 12kohms. However, I am unable to see how I will calculate Vt, as the 40mV initially seen is surely not the potential difference across the battery.
Many Thanks
http://img228.imageshack.us/img228/5797/screenshot20100527at215.png
This is for a biological membrane, but the principles are the same. I am asked what the value of the initial voltage, Vt is.The options are:
What was the value of the initial voltage, Vt?
A. +58 mV
B. -58 mV
C. +40 mV
D. +116 mV
E. It cannot be determined.
I can see that the time constant is 120ms, and hence the internal resistance is 12kohms. However, I am unable to see how I will calculate Vt, as the 40mV initially seen is surely not the potential difference across the battery.
Many Thanks
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