Solve Electric Current & Find E, I & Power Loss

AI Thread Summary
The discussion focuses on solving a circuit problem involving total current, battery voltage, and power loss in a resistor. Participants note the lack of specific values for the battery voltage or branch currents, which complicates finding numerical solutions. It is suggested that using Kirchhoff's rules may be necessary to analyze the circuit effectively. Without additional information, the problem can only be approached symbolically. The consensus emphasizes the need for more data to derive concrete answers.
Phemzy
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Homework Statement


In the circuit below, find
(1) The total current in the circuit
(2) The battery voltage E
(3) The power loss in the 20ohms resistor

Homework Equations


V=IR


The Attempt at a Solution


I=I1+I2
V=30I1 and V=40I2
30I1 = 40I2
or
V-30I1 = V-40I2
 

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Hi Phemzy, welcome to PH.
Please check the problem again. To solve the problem, they must give a current in anyone branch.
 
Hi rl.bhat,

That is how the lecturer gives us the assignment.

No additional information was given

Some of my course mate said, we should use Kirchoff's rule.
 
Without a specific value for the battery voltage or a branch current or *something* to tell you how much energy is moving in the system, the best you can do is to find the answers symbolically.
 

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