Multiple Choice
A transformer actually transforms
A) energy from one value of voltage to another.
B) magnetic and electric field lines.
C) generators into motors.
D) motors into generators.
E) all of the above
Correct Answer:
Verified
Correct Answer:
Verified
Q11: A galvanometer measures<br>A)magnetic fields.<br>B)electric current.<br>C)electric voltage.<br>D)none of
Q11: Wood does not have magnetic properties because
Q12: A magnetic force acts most strongly on
Q14: Electromagnetic induction is employed in<br>A)credit card readers.<br>B)computers.<br>C)mobile
Q17: A galvanometer is a useful device in
Q18: A strong magnetic field easily penetrates<br>A)human flesh.<br>B)plastic
Q19: Maxwell's counterpart to Faraday's law simply states
Q20: A superconducting electromagnet makes use of<br>A)zero resistance
Q51: A device that transforms electrical energy to
Q52: The rate at which energy is transferred