Parallel circuit question

Thread Starter

Rhydermike

Joined Apr 6, 2020
3
parallel circuit
If I have the resistance value of R1 and R3 but not the resistance value of R2 and the voltage is unknown how do I find RT and ET. The equation does show 2 amps across R2.
 

MrChips

Joined Oct 2, 2009
20,919
parallel circuit
If I have the resistance value of R1 and R3 but not the resistance value of R2 and the voltage is unknown how do I find RT and ET. The equation does show 2 amps across R2.
We have no idea until you show a circuit diagram.
We do not put current across a resistor.
You can have voltage across a resistor and current flowing through a resistor.
 

MrChips

Joined Oct 2, 2009
20,919
Use Ohm's Law.

I = V / R
V = I x R
R = V / I

You need two of the three values in order to determine the unknown value.
 
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