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gruba
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Homework Statement
When direct current is measured with ammeter of resistance RA1=100mΩ, current is I1=12 A. When direct current is measured with ammeter of resistance RA1=50mΩ, current is I2=15 A. What is the value of current if there is no ammeter (RA3=0)?
Homework Equations
Ohm's law
The Attempt at a Solution
I am getting that I3=18 A. The result should be 20 A.
Could someone check this?