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CAH
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I've got two resistors in parallel (X and Y) and a variable resistor, ammeter and voltmeter. SEE PHOTO!
I've calculated the value of X by measuring V and I when the switch is open. I can close the switch and measure V and I but how do I calculate the resistance of Y?
I know 1/x + 1/y = 1/R, this may be a stupid question? When I do 1/R - 1/x (where x is known from previous calculation) I get a negative number.
Thanks
I've calculated the value of X by measuring V and I when the switch is open. I can close the switch and measure V and I but how do I calculate the resistance of Y?
I know 1/x + 1/y = 1/R, this may be a stupid question? When I do 1/R - 1/x (where x is known from previous calculation) I get a negative number.
Thanks