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Electromagnetic Induction
Page 3
Questions (154)
A 19 turn circular coil of wire has diameter 1.09 m. It is placed with its axis along the direction of the Earth's magnetic
2 answers
asked by
Cassandra
545 views
A student thrusts a 0,20T magnet with a cross sectional area of 2.0 cm^2 into a coil of 400 turns in 0,50s. The coil has a
4 answers
asked by
Tri
538 views
A loop of wire is lying flat on a tabletop. A uniform magnetic field is directed vertically UPWARDS such that it is
2 answers
asked by
Kelly
515 views
A pickup truck has a width of 78.9 in. If it is traveling north at 36 m/s through a magnetic field with vertical component of 33
2 answers
asked by
John
507 views
A long, ideal solenoid has a diameter d=12cm and n=1200turns/meter carrying current I=20A. If the current is lowered at
1 answer
asked by
gary
517 views
An airplane travel 1000k/h in a region where the Earth's magnetic field is about 5*10-5T.
what is the potential diffenrence
2 answers
asked by
poppy
505 views
The rectangular coils in a 331 turn generator are 14 cm by 17 cm. What is the maximum emf produced by this generator when it
1 answer
asked by
rosita
511 views
A magnet is plunged into and out of a coil of wire 2 times per second. This induces 5 volts.
a- If the rate of motion changes so
1 answer
asked by
anonymous
493 views
The hood ornament of Abe's car is shaped like a ring 0.06m in diameter. Abe is driving toward the west so that the earth's
1 answer
asked by
Anonymous
497 views
what are some good websites for positive and negative impacts of electromagnetic induction?
What kind of electromagnetic
1 answer
asked by
lilly
492 views
I'm not sure how to deal with this problem (we're just starting the unit)...
I need to find the average voltage induced into a
1 answer
asked by
Rachel
476 views
An electric motor best makes use of the fact that on a current-carrying wire in a magnetic field there exists which of these?.
5 answers
asked by
Christy
465 views
A magnet is plunged into and out of a coil of wire 2 times per second. This induces 5 volts.
a- If the rate of motion changes so
1 answer
asked by
anonymous
474 views
A long, ideal solenoid has a diameter d=12cm and n=1200turns/meter carrying current I=20A. If the current is lowered at
1 answer
asked by
gary
474 views
The maximum emf induced in a 10 turn coil with a cross sectional area of 0.1m squared rotating at 20 rad/s in a uniform 10 Tesla
1 answer
asked by
Elmo
456 views
Two ends of the narrow coil are connected to the terminals of an oscilloscope. The solenoid, which was orginally 40cm long is
1 answer
asked by
Jayy
464 views
The average emf induced in the secondary coil is 0.10 V when the current in the primary coil changes from 3.2 to 2.0 A in 0.10
1 answer
asked by
rick
464 views
Near San Francisco, where the vertically downward component of the earth's magnetic field is 6.8 x 10-5 T, a car is traveling
1 answer
asked by
PLEASE HELP
450 views
A magnet is plunged into and out of a coil of wire 2 times per second. This induces 5 volts.
b- If the number of coils in the
1 answer
asked by
anonymous
448 views
is induction when it touches or no
1 answer
asked anonymously
9 views
You have a coil with 20 loops inside a magnetic field generator that is temporarily generating a field that has a rate of change
1 answer
asked by
william mclaren
448 views
Two voltmeters, Vright and Vleft, each with an internal resistance of 106 Ω are connected through wires of negligible
1 answer
asked by
sat
479 views
An alternator running at 500r/min supplies a load at 50Hz. Determine the poles the alternator have.
1 answer
asked anonymously
24 views
A four-pole alternator has a uniform magnetic flux density of 0,5T. A square coil with 200 turns and sides of 18cm is rotated at
1 answer
asked anonymously
63 views
A four-pole alternator has a uniform magnetic flux density of 0,5 T. A square coil with 200 turns and sides of 18cm is rotated
1 answer
asked anonymously
37 views
A four-pole alternator has a uniform magnetic flux density of 0,5 T. A square coil with 200 turns and sides of 18cm is rotated
1 answer
asked anonymously
31 views
A four-pole alternator has a uniform magnetic flux density of 0,5 T. A square coil with 200 turns and sides of 18cm is rotated
1 answer
asked anonymously
41 views
The maximum value of the emf generated in a 32 turn coil is 260V. The coil with dimensions of 360mm by 200mm is rotated by an
1 answer
asked anonymously
34 views
What do you understand mutually induced emf
1 answer
asked anonymously
16 views
A coil of 600 turns is threaded by a flux of 8.0x10–5wb. If the flux is reduced to 3.0x10–wb in 0.0l5s, find the average
1 answer
asked anonymously
17 views
The magnetic flux through each loop of 35 loop coilis given by (3.6t — 0.71t³) x10–2 Tm², where the time t is in seconds.
1 answer
asked anonymously
6 views
A coil of area 10cm² is in a uniform field of magnetic induction 0.1T. The field is reduced to zero in 1ms . Determine the emf
1 answer
asked anonymously
18 views
A 2cmbl by 1.5cm rectangular coilhas 300 turns and rotates in a magnetic field B at 60Hz. What must the values of B be sobthat
1 answer
asked anonymously
16 views
A 2cm by 1.5cm rectangular coil has 300 turns and rotates in a magnetic field B at 60Hz. What must the values of B be sobthat
1 answer
asked anonymously
18 views
A helicopter has blades if 3m, rotating at 2rev/s about a central hub. If the vertical components of the Earth's magnetic field
1 answer
asked anonymously
19 views
The coil in an A.c generator consists of 8 turns of wire, each of area A=0.090m², and the total resistance of the wire is
1 answer
asked anonymously
38 views
A coil consists of 200turns of wire . Each turns is a square of side d=18cm, and a uniform magnetic field directed perpendicular
1 answer
asked anonymously
32 views
A coil consists of 200turns of wire . Each turns is a square of side d=18cm, and a uniform magnetic field directed perpendicular
1 answer
asked anonymously
30 views
Explain what is meant by electromagnetic inductions and show that energy is conserved during the process
1 answer
asked anonymously
14 views
The coil rotates a further 90°. What will the induced emf be at that point?
1 answer
asked by
khonka mayile
11 views
Relationship between secondary induced emf and secondary terminal Voltage on no load
1 answer
asked anonymously
8 views
What is it called when a magnet created by passing an electric current through coils in a wire.
A)magnet B)magnetic pole
1 answer
asked anonymously
24 views
Can field coils of a generator be overexcited? Explain
1 answer
asked anonymously
15 views
Usually when you experiment with circuits, you use a battery or another energy source to create a current. But is it possible to
1 answer
asked anonymously
13 views
Compare: Increase the Speed to 20 cm/s, and click Reverse to move the magnet down. Click Forward and observe both the current
3 answers
asked anonymously
13 views
Challenge: Michael Faraday (1791–1867), who is generally credited as the discoverer of electromagnetic induction (in 1831),
1 answer
asked anonymously
12 views
Explain: As the loop rotates, why is a current induced in the loop?
1 answer
asked anonymously
7 views
What conditions are required to induce a current in a loop of wire?
1 answer
asked anonymously
24 views
Increase the number of turns in the coil. How many turns did you choose?
* 5 points 5 turns 10 turns 15 turns
1 answer
asked anonymously
13 views
What happens as you move the NORTH side of the magnet INTO the coil? Select all that apply*
*Observe what is being measured, what
1 answer
asked anonymously
8 views
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Parent Categories (8)
Electricity
Electricity and Magnetism
Electromagnetism
Energy Transfer
Magnetism
Physics
Physics/Electromagnetism
Science and Technology