Current in the conductor

Calculate the current in the conductor (in mA) if it is connected to a 4.5 V voltage source and its resistance is 20 (ohm).

Correct result:

I =  225 mA

Solution:

U=4.5 V R=20 Ohm  I1=U/R=4.5/20=940=0.225 A  I=1000⋅ I1=1000⋅ 0.225=225 mA

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