The bestway to vary the speed of a shunt motor is by using a __________.
A. variable power supply
B. variable rheostat in the field coil circuit
C. variable armature rheostat
Answer: B
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____________________ is the number of cycles that take place during a period of time.
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Fill in the blank(s) with the appropriate word(s).
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Why aren't solid oxide fuel cells (SOFCs) used in cars?
What will be an ideal response?
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