LT4 Flashcards
1
Q
When you vary the flux density of a motor, you vary the speed and torque of a motor
(T or F)
A
True
2
Q
What do you call a wire wound into a helical coil to create a stronger magnetic field?
A
Solenoid
3
Q
When you vary the flux density of a generator, you vary the voltage produced by the generator
(T or F)
A
True
4
Q
How do relays work?
A
When current flows through the coil, the armature is attracted to the coil core
The two contacts come together, closing the switch
The spring causes the armature to move away from the coil core
This separates the contacts, opening the switch
5
Q
Both Generators and Motors require magnetic poles called field poles to operate
(T or F)
A
True