Multiple Choice
The sloshing of electrons inside a generator need
A) an outside source of energy.
B) a copper lattice.
C) positive ions.
D) none of the above
Correct Answer:
Verified
Correct Answer:
Verified
Q2: A superconducting electromagnet makes use of<br>A)low-resistance coils
Q3: Voltage produced by a generator alternates because<br>A)it
Q4: Surrounding our planet Earth are<br>A)cosmic rays.<br>B)magnetic fields.<br>C)both
Q5: A transformer actually transforms<br>A)energy from one value
Q9: A step-down transformer decreases<br>A)current.<br>B)voltage.<br>C)power.<br>D)energy.<br>E)all of the above
Q11: Surrounding every moving electron is<br>A)a magnetic field.<br>B)an
Q35: Power is the rate at which<br>A)energy is
Q67: Magnetic domains normally occur in<br>A)iron.<br>B)copper.<br>C)silver.<br>D)all of the
Q77: Metal detectors that locate metal beneath sand
Q86: Which of these statements is true?<br>A)a battery