MAAE 2300 Lecture 14: Note Nov 6%2c 2018

) Two parallel wires 20 cm apart carry currents in opposite directions of 10 A. Is
there a force acting on the wires and when this is the case what is the direction of the
force? Is there a point on the connecting line between the two wires where the
magnetic field is zero and when this is so, where is that point. 

Which of the following statements about using geothermal energy is not true?

1. Geothermal energy is a non-conventional source of energy

2. Geothermal energy is used as a fuel for vehicles

3. Geothermal energy is used to generate electricity

4. Geothermal energy is the internal heat of the earth

Which is the correct way to rewrite the following sentence fragment?

Fort Sumter on fire.

A. Fort Sumter is firing.

B. On fire Fort Sumter. It is.

C. Fort Sumter is on fire.