Electronics Robotics Final Review 1 (Semester 2) Question Preview (ID: 47333)
ER.
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What are the 2 opposite sides of a magnet called?
a) North and South
b) Left and Right
c) On and Off
d) North and South Poles
Which of these devices does not use a DC Motor
a) hairDryer
b) RC Car
c) Cordless Drill
d) Elavator
Magnetic materials are known as:
a) Solid materials
b) heavy materials
c) Ferrous materials
d) Electromagnetic Materials
A DC motor converts ________
a) Mechanical energy into Electrical energy
b) Current into Voltage
c) Movement into current
d) Electrical Energy into Mechanical Energy
Which of these is NOT required to make an electromagnet?
a) Source of current
b) Iron Core
c) Bar Magnet
d) Wire Coil
What is Magnetic Induction?
a) The process of a magnetic becoming non-magnetic
b) The process of a magnetic material becoming magnetized
c) The process of turning aluminum into steel
d) The process of doubling the power of a magnet
Which of these items does not require a temporary magnet
a) Maglev Train
b) DC Motor
c) Toaster
d) Fridge Magnet
Which one of these parts is NOT required in a DC motor
a) Brushes
b) Fan
c) magnet
d) Armature (coil)
A DC generator converts ______
a) Voltage into Current
b) Mechanical energy into Electrical energy
c) Electrical energy into Mechanical energy
d) Current into Movement
The right hand rule explains:
a) The size of current flow
b) The direction of current flow
c) The amount of magnetism
d) None of the above
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