physics problem
posted by Alveera .
Q:A 50 turns coil in a generator has an area 500cm(square)rotates in magnetic field with B=1.76 w/m(square), how fast must the coil be rotated in order to generate a maximum voltage of 220 volt?
PLZ EXPLAIN WITH DATA!

http://en.wikipedia.org/wiki/Electromagnetic_induction
Flux is 500cm^2 (change that to m^2)times B times winding turns. deltatime is the reciprocal of frequency.
emf= d flux/dt= Area*B*n/time=area*B*rate*n
solve for rate.
Respond to this Question
Similar Questions

physics
The coil of the ac generator rotates at a frequency of f =60.0 Hz and develops an emf of 120 V (rms). The coil has an area of A = 3.0 x 10 3 m 2 and consists of N = 500 turns. a. Find the magnitude of the magnetic field in which the … 
physics
A generator uses a coil that has 280 turns and a 0.45T magnetic field. The frequency of this generator is 60.0 Hz, and its emf has an rms value of 120 V. Assuming that each turn of the coil is a square (an approximation), determine … 
Physics
You have a coil with 20 loops inside a magnetic field generator that is temporarily generating a field that has a rate of change of 0.25. The other end of this coil is wrapped around a core with 15 turns. How many turns must a second … 
PHYSICS
You have a coil with 20 loops inside a magnetic field generator that is temporarily generating a field that has a rate of change of 0.25. The other end of this coil is wrapped around a core with 15 turns. How many turns must a second … 
Physics
A generator has a square coil consisting of 700 turns. The coil rotates at 78 rad/s in a 0.21T magnetic field. The peak output of the generator is 120.00 V. What is the length of one side of the coil? 
Physics
A generator has a square coil consisting of 700 turns. The coil rotates at 78 rad/s in a 0.21T magnetic field. The peak output of the generator is 120.00 V. What is the length of one side of the coil? 
Physics
A generator has a square coil consisting of 700 turns. The coil rotates at 78 rad/s in a 0.21T magnetic field. The peak output of the generator is 120.00 V. What is the length of one side of the coil? 
physics
You have a coil with 20 loops inside a magnetic field generator that is temporarily generating a field that has a rate of change of 0.25. The other end of this coil is wrapped around a core with 15 turns. How many turns must a second … 
physics
You have a coil with 20 loops inside a magnetic field generator that is temporarily generating a field that has a rate of change of 0.25. The other end of this coil is wrapped around a core with 15 turns. How many turns must a second … 
physics
The coil in a generator has 200 windings and a crosssectional area of 0.0100 m^2. If the coil turns at a constant rotational speed and the magnetic field in the generator is that of Earth (B = 0.500 × 10^4 T), how many 360 rotations …