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Electromagnetism (#1) - Electromagnetism and Motors
By Sandra Kuhn
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Last updated about 1 year ago
7 questions
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Question 1
1.
Which of the following is not a function of the split-ring commutator?
The brushes allow for free rotation of the coil
The current direction is switched in the coil every 180°
Alternating current to direct current
The current is stopped every 180° to prevent jamming
Question 2
2.
What energy conversion takes place in a motor?
Electrical to kinetic
Magnetic to kinetic
Magnetic to electrical
Kinetic to electrical
Question 3
3.
In which direction is this wire moving?
Towards 4
Towards 1
Towards 2
Towards 3
Question 4
4.
A stream of protons is being carried in a channel that goes perpendicularly into the page.
What is the direction of the magnetic field around the channel?
moving apart
moving together
circular and clockwise
circular and anticlockwise
Question 5
5.
A straight current-carrying conductor is carrying conventional current out of the page.
What is the direction of the magnetic field around the conductor?
circular and clockwise
moving together
circular and anticlockwise
moving apart
Question 6
6.
In what direction does this motor turn?
does not turn as the angle is 90
0
clockwise
anticlockwise
does not turn as it requires a slip ring to function and not a split ring commutator
Question 7
7.
Where will the induced North pole of this solenoid be relative to the solenoid?
below
above
left
right