Question

An ac generator has a coil with 2500 turns and area 4.2x10-3 m^2 the coil rotates...

An ac generator has a coil with 2500 turns and area 4.2x10-3 m^2 the coil rotates in magnetic field of .1T and generates an emf of 240Vrms what is the max magnetic flux through coil ? What is the frequency of generator ?

Homework Answers

Answer #1

Given : N = 2500 , A = 4.2×10-3 m2 , B = 0.1 T , = 240 V

Solution :

Step:1

We know that magnetic flux is maximum when = 0.

So maximum magnetic flux is given by :

B = B.A cos , = 0

B = B×A

= (0.1T) × (4.2×10-3 m2)

= 4.2×10-4 Wb

Step:2

Induced emf is given by :

= NBAsint

Maximum induced emf ,

o = NBA

= o / NBA

= (240 V)/(2500*0.1*4.2×10-3)

= 228.57 rad/s

We know that , = 2f

Where f is the frequency

2f = 228.57

f = 228.57/2

By solving we get ,

f = 36.4 Hz

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A generator is constructed by rotating a coil of N turns in a magnetic field B...
A generator is constructed by rotating a coil of N turns in a magnetic field B at a frequency f. The internal resistance of the coil is R and the cross sectional area of the coil is A. Decide which statements are true and which are false. If the first is T and the rest F, enter TFFFFF. A) The maximum induced EMF occurs when the coil is rotated about an axis parallel to the magnetic field lines. B) The...
A coil has 250 turns enclosing an area of 10.0 cm2 . In a physics laboratory...
A coil has 250 turns enclosing an area of 10.0 cm2 . In a physics laboratory experiment, the coil is rotated during the time interval 3.10×10−2 s from a position in which the plane of each turn is perpendicular to Earth's magnetic field to one in which the plane of each turn is parallel to the field. The magnitude of Earth's magnetic field at the lab location is 5.80×10−5 T . a) What is the magnitude Φinitial of the magnetic...
In a physics laboratory experiment, a coil with 180 turns enclosing an area of 11.4 cm2...
In a physics laboratory experiment, a coil with 180 turns enclosing an area of 11.4 cm2 is rotated during the time interval 4.90×10−2 s from a position in which its plane is perpendicular to Earth's magnetic field to one in which its plane is parallel to the field. The magnitude of Earth's magnetic field at the lab location is 6.60×10−5 T . A.)What is the magnitude of the magnetic flux (Φinitial) through the coil before it is rotated? B.)What is...
EXERCISE 29.2 In a physics laboratory experiment, a coil with 240 turns enclosing an area of...
EXERCISE 29.2 In a physics laboratory experiment, a coil with 240 turns enclosing an area of 10.8 cm2 is rotated in a time interval of 3.80×10−2 s 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 earth's magnetic field at the lab location is 6.5×10−5 T. (Express your answers using two significant figures.) A) What is the magnetic flux through each turn of 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...
Coil 1 has L1 = 37 mH and N1 = 122 turns. Coil 2 has L2...
Coil 1 has L1 = 37 mH and N1 = 122 turns. Coil 2 has L2 = 50 mH and N2 = 206 turns. The coils are fixed in place; their mutual inductance M is 4.3 mH. A 9.4 mA current in coil 1 is changing at the rate of 6.7 A/s. (a) What magnetic flux Φ12 links coil 1, and (b) what self-induced emf appears in that coil? (c) What magnetic flux Φ21 links coil 2, and (d) what...
Problem 9:   Consider a generator that rotates its 200 turn, 0.13 m diameter coil at 3550...
Problem 9:   Consider a generator that rotates its 200 turn, 0.13 m diameter coil at 3550 rpm in a 0.75 T field. Randomized Variables d = 0.13 m f = 3550 rpm B = 0.75 T Calculate the peak voltage of the generator. ε0 = ___________ Problem 10:   Suppose that a 0.375 m radius, 500 turn coil produces an average emf of 10750 V when rotated one-fourth of a revolution in 4.18 ms, starting from its plane being perpendicular to...
The armature of a 60 Hz ac generator rotates in a 0.12 T B-field. If the...
The armature of a 60 Hz ac generator rotates in a 0.12 T B-field. If the area of the coils is 0.03 m2, how many loops must the coil contain if the peak output is to be V = 270 V? What will the current & power output (not the power loss) be if the resistance of the coil is 0.4 ?? N = turns I =   P =
In a physics laboratory experiment, a coil with 200 turns enclosing an area of 10.1 c...
In a physics laboratory experiment, a coil with 200 turns enclosing an area of 10.1 c m^2 is rotated during the time interval 3.00×10−2 s from a position in which its plane is perpendicular to Earth's magnetic field to one in which its plane is parallel to the field. The magnitude of Earth's magnetic field at the lab location is 6.20×10−5 T . a.What is the magnitude of the magnetic flux Φinitial through the coil before it is rotated? Express...
If the rectangular coil of a generator has 200 turns, sides of length 0.4m and 0.6m,...
If the rectangular coil of a generator has 200 turns, sides of length 0.4m and 0.6m, and an angular frequency of 100rad/s, in region of space with a magnetic field of 3T, calculate the maximum induced voltage in the coil.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT