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evol_w10lv
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Homework Statement
Task is to write differential equation for this circuit.
E, R1, R2, R3, L are constants.
Homework Equations
Ul = L di/dt
The Attempt at a Solution
I guess, we have to use current method for each contour.
1st contour equation:
E = U1 + U2 + Ul = i*(R1+R2) + L di/dt
Equation arround the loop:
E = i*R1 + i2*(R1+R3)
It means that I got system:
E=i*(R1+R2) + L di/dt +i2*R1
E = i*R1 + i2*(R1+R3)
The problem is i2. I need to get i2, I guess, from second contour using L, R2 and R3. Can someone help quickly? I need this task until tomorrow.
Or I have done something wrong at the begining?
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