Indicate whether the following statements are true (T) or false (F), and explain your reasoning. Please...
Indicate whether the following statements are true (T) or false (F), and explain your reasoning. Please note that if only part of a statement is true, another part is false, you should mark the whole statement as false.
a) If a wire carries an alternating current (that is, a current that changes constantly), and a circuit is placed nearby, there will necessarily be an induced current in the circuit.
b) If a wire carries a constantly increasing current and a circuit is placed nearby, a current will be induced in it. If instead he wire carries a constantly decreasing current, however, no current will be induced in the circuit.
d) Magnets are generally attracted to current-carrying wires because the wires are made of copper, which is a ferromagnetic material.
e) If the magnetic field through a loop of wire is constant, and
the area of the loop isn't changing either, then there will be no
induced current in the loop.
f) In RL circuits, if the current is constant, then a long time
after the circuit has been turned on the inductor behaves the same
as a regular piece of wire.
Homework Answers
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