MIME-Version: 1.0 Content-Location: file:///C:/D9286902/Summer08.Phys1112.Quiz8.SolutionWeb.htm Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="us-ascii" Department of Natural Sciences

 

Clayton State University

Department = of Natural Sciences

July 1, 2008<= /p>

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Physics 111= 2 – Quiz 8

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Name  ___= SOLUTION__________________________________

 

 A certain solenoid has 500 turns of wire and a length of 15.0 cm.

 

   &nbs= p;        a. Find the magnetic field inside the solenoid when it carries a current of 1.= 50 A.

Please specify the directio= n, given that the current in the solenoid flows in the clockwise direction.

 

B =3D m= 0 n I =3D (4 p x 10-7 Tm/A= )(500 turns/0.150 m)(1.50 A) =3D 0.00628 T, away from you

 

 

 

b.  Find a torque acting on a single sq= uare loop (0.500 cm by 0.500 cm) carrying a current of 2.50 A inside the solenoi= d, if the plane of the loop is oriented parallel to the magnetic field of the solenoid.

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t =3D N B A I sin (q) =3D (1)(0.= 00628 T)(0.00500 m)2 = (2.50 A) sin (90.0o) =3D = 3.93 x 10-7 N-m