Question
A soldering iron uses an electric current in a wire to heat the tip. A transformer with 100 turns on the secondary coil provides 52
A soldering iron uses an electric current in a wire to heat the tip. A transformer with 100 turns on the secondary coil provides 52 W at an RMS voltage of 26 V . Assume that the soldering iron is plugged into a 120 V outlet.
A) What is the resistance of the wire in the iron?
B) How many turns are in the primary coil?
C) What is the current in the primary coil?
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The Physical Universe
Authors: Konrad B Krauskopf, Arthur Beiser
16th edition
77862619, 978-0077862619
