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physikamateur
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Homework Statement
The current in amperes through a certain type of non-linear resistor is given by I=0.05V^3, where V is the potential difference in volts across the resistor. This resistor is connected in series to a fixed resistor and a constant voltage source of 9V is connected across the series combination. What value of resistance should the fixed resistor have so that a current of 0.40A flows ?
Homework Equations
V=IR and P=VI ?
The Attempt at a Solution
I first tried to calculate the total resistance which gives 22.5 ohms. But I do not know how to calculate the non-linear resistor as it does not obey ohm's law hence no proper formula can be used ? Please help.
Thank you.