A small circular coil of 30 turns of wire lies in a uniform magnetic field of 0.8 T, so that the normal to the plane of the coil makes an angle of 30 ◦ with the direction of B~ . The radius of the coil is 3 cm, and it carries a current of 1 A. What is magnitude of the magnetic moment of the coil? Answer in units of A · m2 .

What do elements in a family tend to share. a.) similar periods b.) similar groups c.) similar atomic symbols d.) similar chemical properties and characteristics

When you jump from an elevated position you usually bend your knees upon reaching the ground. by doing this, you make the time of the impact about 10 times as great as for a stiff-legged landing. in this way the average force your body experiences is a) less than 1/10 as great. b) more than 1/10 as great. c) about 1/10 as great.d) about 10 times as great.

How much work would it take to move a coulomb charge across a 4 volt potential difference?