Question

In: Physics

A hydroelectric with 0.2 m radius coils has permanent magnets that immerse the coils in a...

A hydroelectric with 0.2 m radius coils has permanent magnets that immerse the coils in a magnetic field of 0.5 T. If the maximum torque that the turbines can produce is 750 Nm and it is sought to generate a maximum voltage of V = (1414.3 V) sin (wt) at an average rms power of 2x10 ^ 4 W. a) What maximum current the turbine should generate, b) how many turns should the coil have, c) what radius should the coil cable have? d) if it is to be transported at 50 kvrms, how many turns should the secondary inductor of the transformer have for each turn of the primary?

Solutions

Expert Solution

genius_generous answered 2 years ago
Next > < Previous

Related Solutions

A hydroelectric with 0.2 m radius coils has permanent magnets that immerse the coils in a...
A hydroelectric with 0.2 m radius coils has permanent magnets that immerse the coils in a magnetic field of 0.5 T. If the maximum torque that the turbines can produce is 750 Nm and it is sought to generate a maximum voltage of V = (1414.3 V) sin (wt) at an average rms power of 2x10 ^ 4 W. a) What maximum current the turbine should generate, b) how many turns should the coil have, c) what radius should the...
Permanent magnets are made from?
Permanent magnets are made from? A. paramagnetic materials B. diamagnetic materials C. ferromagnetic materials D. dielectric materials
An insulating sphere of mass M and radius R is wrapped with N coils of wire...
An insulating sphere of mass M and radius R is wrapped with N coils of wire around its equator. The sphere is placed on an incline at an angle θ in a uniform magnetic field of strength B. The goal is to keep the sphere from rolling down the incline by having a current in the coils. [Recall, the force of static friction at the point of contact creates a torque about the center of the sphere, which is what...
Permanent magnets are commonly used for what part of the starter?
Permanent magnets are commonly used for what part of the starter? a. Armature b. Solenoid c. Field coils d. Commutator
Describe some of the similarities between the permanent magnets and electromagnets
Describe some of the similarities between the permanent magnets and electromagnets
A solid disk of mass m1 = 9.9 kg and radius R = 0.2 m is...
A solid disk of mass m1 = 9.9 kg and radius R = 0.2 m is rotating with a constant angular velocity of ω = 35 rad/s. A thin rectangular rod with mass m2 = 3.1 kg and length L = 2R = 0.4 m begins at rest above the disk and is dropped on the disk where it begins to spin with the disk. 1) What is the initial angular momentum of the rod and disk system? 2) What...
A water pipe tapers down from an initial radius of R1 = 0.2 m to a...
A water pipe tapers down from an initial radius of R1 = 0.2 m to a final radius of R2 = 0.09 m. The water flows at a velocity v1 = 0.86 m/s in the larger section of pipe. 1. What is the volume flow rate of the water? 2. What is the velocity of the water in the smaller section? 3. Using this water supply, how long would it take to fill up a swimming pool with a volume...
If the radius of the coils is 50 cm, what would be the (peak) magnetic field...
If the radius of the coils is 50 cm, what would be the (peak) magnetic field at the center of a single coil loop?  (Show work.) Use the concept of electromagnetic induction to explain why the light bulbs in the chandelier light up.  Recall that they are in the presence of a strong, rapidly changing magnetic field!. The chandelier is not plugged in, so presumably the filaments in the light bulb are not part of any closed circuit.  Yet there appears to be...
A thin, flat plate that is 0.2 m × 0.2 m on a side is oriented...
A thin, flat plate that is 0.2 m × 0.2 m on a side is oriented parallel to an atmospheric airstream having a velocity of 40 m/s. The air is at a temperature of ∞T∞= 20ºC, while the plate is maintained at Ts= 120ºC. The air flows over the top and bottom surfaces of the plate, and measurement of the drag force reveals a value of 0.075 N. What is the rate of heat transfer from both sides of the...
A sphere of matter, of mass M and radius a, has a concentric cavity of radius...
A sphere of matter, of mass M and radius a, has a concentric cavity of radius b. Find the gravitational force F exerted by the sphere on a particle of mass m, located a distance rfrom the center of the sphere, as a function of r in the range 0 ? r ? ? . Consider points r = 0; b; a and ? in particular.
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT