PH Week 12 Reading Homework
Presentation
•
Physics, Science
•
10th - 12th Grade
•
Hard
Rachel Wold
FREE Resource
6 Slides • 6 Questions
1
by Rachel Wold
2
Electromagnet
Electromotive Force
Electric Motor
3
4
5
Multiple Choice
A ____is a long coil of wire consisting of many loops of wire that makes a complete circuit.
motor
electron motor
free motor
solenoid
6
Multiple Choice
An electromagnet is a piece of brass inside a solenoid.
True
False
7
Multiple Choice
Electromagnets are temporary magnets.
True
False
8
9
10
Multiple Choice
Electromotive force is a force.
True
False
11
Multiple Select
The EMF depends on which three things?
the direction of the magnetic field
the magnetic field strength
the length of the wire in the magnetic field
the velocity of the wire in the field
12
Open Ended
A straight wire 0.500 m long is moved straight up through a 0.400 T magnetic field pointed in the horizontal direction. The speed of the wire is 20.0 m/s.
What EMF is induced in the wire?
If the wire is part of a circuit with a total resistance of 6.00 Ω6.00 Ω, what is the current in the circuit?
Hint (use EMF=Blv and then use V=IR)
by Rachel Wold
Show answer
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