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Home Q & A Board Science-Related Homework Help Physics
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Juliehansen Juliehansen
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11 years ago
http://i53.tinypic.com/20atea1.jpg
Ok I have the values for current and voltage for the individual resistors. Now I need to figure out how to calculate what the amp meter and volt meter will calculate in order to find out which configuration will be the most accurate (within 3 to 4 decimal places, how do I do this for the two circuits with the amp and voltmeter connected?.

Total R = 200
I = .03

Voltage for the 20 ohm resistor is
.6

Voltage for the 180 ohm resistor is
5.4
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wrote...
#1
11 years ago
I already calculated all this for you before, but here we go again:
Multiply going up, divide going down.

For the total:
P = 0.18 Watts
E = 6 Volts
I = 0.03 Amps
R =200 Ohms

First resistor:
P = 0.108 Watts
E = 0.6 Volts
I = 0.03 Amps
R = 20 Ohms

2nd resistor:
P = 0.162 Watts
E = 5.4 Volts
I = 0.03 Amps
R = 180 Ohms

To check, you can add them all up - Equals the total above:
P = 0.108 + 0.162 = 0.18
E = 0.6 + 5.4 = 6.0
I = 0.03
R = 180 + 20 = 200

If you ask again I'll do it again - and I will charge you for my time to tutor you!
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