Find the Current of a circuit, all you are given is P= .4W

Thread starter jdub88
Start date Feb 13, 2007
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Circuit Current

AI Thread Summary

To find the current in a circuit with only the power (P) given as 0.4W, additional information is required, such as voltage (V) or resistance (R). The relationship P = VI indicates that both voltage and current are necessary to solve for current. Without another parameter, it is impossible to determine the current accurately. A circuit diagram could provide more context, but as it stands, the current cannot be calculated with the provided information alone.

Feb 13, 2007

jdub88

Homework Statement

Find the Current of a circuit, all you are given is P= .4W

Homework Equations

The Attempt at a Solution

Not sure what to do? P=VI
.4=VI
Am i missing some relevant info here? Or can you find Current if you are just given P?

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Feb 13, 2007

ranger

Gold Member

No. You must be given another parameter.

Feb 13, 2007

twotaileddemon

Can you show us what the circuit looks like? In a diagram maybe??

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