Solve Electric Current & Find E, I & Power Loss

[Phemzy]

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

 

[rl.bhat]

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

 

[Phemzy]

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.

 

[gneill]

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.