Appliance 82079

The voltage at the terminals of the appliance is 4.5 V. A current of 0.5A passes through the appliance. What voltage must the appliance have if a current of 0.7A is to pass through it?

Correct answer:

U2 =  6.3 V

Step-by-step explanation:

U1=4.5 V I1=0.5 A  I2=0.7 A  U= R I  R=U1/I1=4.5/0.5=9 Ω  U2=R I2=9 0.7=6.3 V



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