Physics

An electric motor has 72 turns of wire wrapped on a rectangular coil, of dimensions 3cm by 4cm. Assume that the motor uses 14A of current and that a uniform 0.5T magnetic field exists within the motor.

1)What is the maximum torque delivered by the motor? Answer in units of Nm.

2)If the motor rotates at 3000 rev/min, what is the peak power produced by the motor? Answer in units of W.

any help is appreciated! thanks

Max torque will be at 90 degrees to the plane of B.

Torque= current*turns*area*B

area is in square meters.

  1. 👍 0
  2. 👎 0
  3. 👁 207
asked by Belle
  1. jk

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. 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

    asked by william mclaren on February 22, 2013
  2. 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

    asked by Anonymous on February 9, 2014
  3. 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

    asked by Anonymous on November 16, 2014
  4. 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

    asked by william mclaren on February 22, 2013
  5. 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 a second coil wrapped

    asked by Anonymous on February 11, 2014
  6. Physics

    1. A rectangular coil 0.065 m by 0.080 m is positioned so that its cross-sectional area is perpendicular to the direction of a magnetic field. The coil has 66 turns and a total resistance of 7.6 Ω and the field decreases at a

    asked by Jake on December 21, 2016
  7. Physics

    You have a wire of length L = 2.1 m for making a square coil of a dc motor. The current in the coil is I = 1.8 A, and the magnetic field of the motor has a magnitude of B = 0.32 T. Find the maximum torque exerted on the coil when

    asked by Anonymous on February 25, 2013
  8. Physics

    An electric generator contains a coil of 100 turns of wire, each turn forming a rectangular loop 50cm by 30cm. The coil is placed entirely in a uniform magnetic field with magnitude, B = 3.5T and direction initially perpendicular

    asked by Ri on November 24, 2010
  9. Physics -HELP

    1. A rectangular coil 0.065 m by 0.080 m is positioned so that its cross-sectional area is perpendicular to the direction of a magnetic field. The coil has 66 turns and a total resistance of 7.6 Ω and the field decreases at a

    asked by Jake on December 21, 2016
  10. Physics - Transformer in AC

    A soldering iron uses an electric current in a wire to heat the tip. A transformer with 100 turns on the secondary coil provides 54 W at an rms voltage of 26 V. a) How many turns are in the primary coil? b) What is the current in

    asked by Bob on March 14, 2011

More Similar Questions