An electromagnet includes:
A) a coil of wire
B) an iron core
C) a solenoid
D) all of the above
Correct Answer:
Verified
Q61: Wood and plastic are considered:
A) nonmagnetic
B) paramagnetic
C)
Q62: A step-up transformer results in
A)decreased current
B)decreased voltage
C)decreased
Q64: A device that converts electrical energy to
Q66: The idea that electricity could be induced
Q67: A step-up transformer results in
A)increased current
B)increased voltage
C)increased
Q68: With self-induction,the secondary current
A)is in a secondary
Q69: A step-down transformer results in
A)increased current
B)increased voltage
C)increased
Q70: A device that converts mechanical energy to
Q77: Self-induction is based on the concepts introduced
Q79: The idea that electricity flowing through a
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