Saturday

January 31, 2015

January 31, 2015

Posted by **Mary** on Friday, September 28, 2007 at 1:57am.

Please tell me if I am going in the right direction.

Torque = NIAB sin theta

8.4x10^-4 = 1 x 3.9 x (pi r^2) x 0.9 x sin theta

How do I find the value of sin theta to plug into the formula?

- Physics -
**drwls**, Friday, September 28, 2007 at 2:49amThey give you the maximum torque, and that corresponds to theta = 90 degrees

(sin theta = 1)

Solve for r.

N = 1 in this case

The length of the wre is 2 pi r

**Answer this Question**

**Related Questions**

Physics - A wire has a length of 5.40 10-2 m and is used to make a circular coil...

Physics - A wire has a length of 5.40 10-2 m and is used to make a circular coil...

Physics 2 - A wire has a length of 4.52 x 10-2 m and is used to make a circular ...

Physics 2 - A wire has a length of 4.52 x 10-2 m and is used to make a circular ...

Physics - You have a wire of length L = 2.1 m for making a square coil of a dc ...

physics - A 35 turn coil of radius 4.9 cm rotates in a uniform magnetic field ...

physics - A circular coil with a radius of 25 cm has 20 turns. The coil is ...

Physics - A coil of wire with 200 circular turns of radius of 3 cm is in a ...

Physics - A flat circular coil with 192 turns, a radius of 2.35 x 10-2 m, and a ...

Physics - A circular coil (660 turns, radius = 0.037 m) is rotating in a uniform...