Sunday
March 29, 2015

Homework Help: Physics

Posted by Phy on Saturday, April 6, 2013 at 12:24am.

A simple motor has N=250 turns of wire on a coil measuring 12 cm \times \, 4 cm. It's resistance is R=10 ohms. The magnetic field is B=1 T.

(a) How much current (in Ampere) in the coil is needed to produce a maximum torque of 40 Nm?

b) What maximum EMF (in Volts) is needed to drive the motor at 50 Hz if the current is constant?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Physics - A coil of wire with 200 circular turns of radius of 3 cm is in a ...
physics - A circular coil with a radius of 25 cm has 20 turns. The coil is ...
Physics - A flat circular coil with 192 turns, a radius of 2.35 x 10-2 m, and a ...
physics - Need help on which formulas I use to solve problems? A coil of wire ...
Physics - You have a wire of length L = 2.1 m for making a square coil of a dc ...
Physics - A flat circular coil with 193 turns, a radius of 5.50 x 10-2 m, and a ...
physics - A flat circular coil with 113 turns, a radius of 3.64 10-2 m, and a ...
Physics PLEASE HELP! - A flat circular coil with 97 turns, a radius of 4.04 10-2...
physics - The coil of the ac generator rotates at a frequency of f =60.0 Hz and ...
Physics - An electric motor has 72 turns of wire wrapped on a rectangular coil, ...

Members