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Solenoids Practice Test
•2 QuestionsQuestion
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Q1
A transformer is plugged into a household outlet 
that supplies 
of current. The transformer steps up the potential to 
having a secondary coil with 
turns. How many turns does the primary coil have?
A transformer is plugged into a household outlet
long solenoid has a current increase from zero to 
in 
. The induced EMF magnitude is 
. Find the inductance.