Multiple Choice
Transformers use ac so there will be the required
A) transfer of energy from coil to coil.
B) voltage for transformation.
C) change in magnetic field for operation.
D) change in input current.
E) magnetic field intensities.
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q19: A device that transforms electrical energy to
Q20: Electromagnetic induction occurs in a coil when
Q21: Metal detectors,like the ones used at airports,are
Q22: Neon signs require about 12,000 volts to
Q25: Use the following figure to answer the
Q27: If a magnet is pushed into a
Q28: Compared to the primary voltage,the secondary voltage
Q29: The metal detectors that people walk through
Q29: If the primary of a transformer were
Q53: Rapid change of a magnetic field induces<br>A)a