A 20 turn coil of area 10 cm2 is placed in a magnetic field so that the normal to its area is in the direction of the field. If the field has a value of 0.25 T, what is the total flux through the coil?
A. 0.0
B. 
C. 
D. 
E. 
B.
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A gas and a plasma are similar in that they are both
1) fluids, 2) crystalline, 3) covalent, 4) in cohesively bound states, while the principle difference between a gas and a plasma has to do with 5) atomic number. 6) density. 7) pressure. 8) electrical conduction.
Suppose you are facing a tall makeup mirror on a vertical wall. Fluorescent tubes framing the mirror carry a clockwise electric current. What is the direction of the field the current creates at a point on the wall outside the frame to the right?
1.left 2.right 3.horizontally toward you 4.horizontally away from you 5.no direction because the field has zero magnitude
One member of a pair of parallel conducting plates has potential 17 V. An electron is ejected from that plate at potential and travels the other plate, attaining a velocity of 
when it arrives. What is the potential of the second plate? The mass of the electron is 
kg.
A. 157 V B. 89 V C. 72 V D. -54 V E. 142 V
The "particle" of light given off by an excited electron when it loses energy is called a(n) ______________
Fill in the blank(s) with correct word