# Physics URGENT

I did a lab on DC circuits, and we calculated the resistance of multiple resistors in parallel.

Resistance of Resistor 1 & 2 = 1000 +/- 5%
so R1 =1000+/- 50
R2= 1000 +/1 50

i need to calculate R using the equation...

R= 1/R1 + 1/R2

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1. This is a classic trick question.

Read the section on parallel resistors:
http://www.ee.unb.ca/tervo/ee2791/errors3.htm

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