Question

The area of a 120 turn coil oriented with its plane perpendicular to a 0.17T magnetic...

The area of a 120 turn coil oriented with its plane perpendicular to a 0.17T magnetic field is 4.8

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

the initial magnetic flux through all the turns is
NSB (N the number of turns, S area of a turn and B the magnetic field. if the magnetic field reverses its direction the magnetic flux changes its sign but not its magnitude becoming -NSB. the change in magnetic flux is
NBS-(-NBS)=2NBS
the induced emf is by definition (in magnitude)
induced emf=change of the magnetic flux/time in which the change is achieved and so
emf=2NBS/t=2x120x0.17x0.048/0.29 Volt =6.75 V
the rest should be your contribution using the computer!

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
1. The area of a 130 turn coil oriented with its plane perpendicular to a 0.19...
1. The area of a 130 turn coil oriented with its plane perpendicular to a 0.19 T magnetic field is 5.7×10−2 m2 . Find the average induced emf in this coil if the magnetic field reverses its direction in 0.50 s Airplane emf A Boeing KC-135A airplane has a wingspan of 39.9m and flies at constant altitude in a northerly direction with a speed of 860 km//h . If the vertical component of the Earth's magnetic field is 5.3×10−6 T...
A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of...
A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of the field is changing, so that an emf of 0.23 V and a current of 2.4 A are induced in the coil. The wire is then re-formed into a single-turn square coil, which is used in the same magnetic field (again perpendicular to the plane of the coil and with a magnitude changing at the same rate). What (a) emf and (b) current are...
9. A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude...
9. A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of the field is changing, so that an emf of 0.77 V and a current of 2.7 A are induced in the coil. The wire is then re-formed into a single-turn square coil, which is used in the same magnetic field (again perpendicular to the plane of the coil and with a magnitude changing at the same rate). What emf is induced in the...
A 6.60 cm diameter wire coil is initially oriented so that its plane is perpendicular to...
A 6.60 cm diameter wire coil is initially oriented so that its plane is perpendicular to a magnetic field of 0.630 T pointing up. During the course of 0.180 s, the field is changed to one of 0.260 T pointing down. What is the average induced emf in the coil?
A 13.4 cm -diameter wire coil is initially oriented so that its plane is perpendicular to...
A 13.4 cm -diameter wire coil is initially oriented so that its plane is perpendicular to a magnetic field of 0.30 T pointing up. During the course of 0.20 s , the field is changed to one of 0.24 T pointing down. What is the magnitude of the average induced emf in the coil?
In a physics laboratory experiment, a coil with 180 turns. Each turn of the coil encloses...
In a physics laboratory experiment, a coil with 180 turns. Each turn of the coil encloses an area of 12 cm2 . The coil is rotated from a position where its plane is perpendicular to the earth's magnetic field to one where its plane is parallel to the field. The rotation takes 3.4×10−2 s . The earth's magnetic field at the location of the laboratory is 6.0×10−5 T. A) What is the magnetic flux through one turn of the coil...
A five-turn circular wire coil of radius 0.425 m lies in a plane perpendicular to a...
A five-turn circular wire coil of radius 0.425 m lies in a plane perpendicular to a uniform magnetic field of magnitude 0.370 T. If the wire is reshaped from a five-turn circle to a three-turn circle in 0.101 s (while remaining in the same plane), what is the average induced emf in the wire during this time?
A 37-turn circular coil of radius 4.60 cm and resistance 1.00 Ω is placed in a magnetic field directed perpendicular to...
A 37-turn circular coil of radius 4.60 cm and resistance 1.00 Ω is placed in a magnetic field directed perpendicular to the plane of the coil. The magnitude of the magnetic field varies in time according to the expression B = 0.010 0t + 0.040 0t2, where B is in teslas and t is in seconds. Calculate the induced emf in the coil at t = 4.20 s.
A 140 turn , 2.40 cm diameter coil is at rest in a horizontal plane. A...
A 140 turn , 2.40 cm diameter coil is at rest in a horizontal plane. A uniform magnetic field 60∘ away from vertical increases linearly from 0.740 T to 1.67 T in 0.660 s . (Ans. 44.6 mV) please answer parts A and B, each present new conditions for the same coil. A). If the loops are then re-aligned such that the magnetic field is perpendicular to the plane of the loops (the area vector is parallel with the magnetic...
A 149-turn circular coil of radius 2.67 cm is immersed in a uniform magnetic field that...
A 149-turn circular coil of radius 2.67 cm is immersed in a uniform magnetic field that is perpendicular to the plane of the coil. During 0.153 s the magnetic field strength increases from 51.1 mT to 99.3 mT. Find the magnitude of the average EMF, in millivolts, that is induced in the coil during this time interval.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT