posted by .

Consider a simple alternating current generator such as Hippolyte Pixii's dynamo. The current generated by such dynamo can be described as simple oscillating cosine signal. Assuming for simplicity that the max current generated each time a pole of Pixii's magnet passed the coil is (2/pi)0.5 amperes and that the magnet rotate with a characteristic angular frequency ù0.

Write the mathmatical expression for the time-domain signal (current vs. time) from such AC generator. For simplicity, assume that the magnet was already spinning at the beginning of the observation and the magnet's poled happened to be just below the coils at time zero.

I am not really sure how to start, I just need know that I need something relate current with time and equation should have cosine.
Thanks for any help

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Pre Calculus

    The electricity in your house is alternating current because the current varies sinusoidally with time. The frequency of sinusoid is 60 cycles per second. Suppose at Time = 0 seconds the current is at its max of 5 amperes. Write an …
  2. Physics

    Question related to a bicycle dynamo and a wheel. Why a current flows through the bicycle lamp when the wheel of the bicycle turns?
  3. science

    A 0.25 kg length of aluminum wire is warmed 10.0 degrees by an electric current. How much heat was generated by the current?
  4. Physics

    Power transmission lines often use a form of electric current called alternating current, but in many regions, such as the Province of Quebec, high-voltage direct-current lines are used instead. Direct current is the kind of electric …
  5. Physics. Help please

    A small permanent magnet is located on the x-axis with the center at <15,0,0>cm. The magnet’s North pole is at location <14.5, 0, 0>cm and the South pole is at location <15.5, 0, 0>cm. A current loop is placed in …
  6. chemistry

    A 0.25 kg length of aluminum wire is warmed 10.0°C by an electric current. How much heat was generated by the current?
  7. Physics

    1.How are alternating and direct current different?
  8. physics

    A current of 1 A is maintained in a simple circuit with a total resistance of 2.5 Ω. How much heat is generated in 4.0 s?
  9. physcial science

    The type of current in your home is mostly A. direct current. B. alternating current. C. series current. D. produced by batteries.
  10. physcial science

    What type of current is produced by a battery?

More Similar Questions