A 4.0 ?F and a 6.0 ?F capacitor are connected in series across an 8.0-V DC source. What is the charge on the 6.0 ?F capacitor?
A)
2.0 ?C
B)
4.0 ?C
C)
12 ?C
D)
25 ?C
E)
19 ?C
E
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The electric field has a magnitude of 3.00 N/m at a distance of 60.0 cm from a point charge. What is the charge?
A. 1.40 nC B. 120 pC C. 36.0 mC D. 12.0 ?C E. 3.00 nC
In an energy level transition from the n = 2 state to the n =1 state for a hydrogen atom a photon will be emitted
a. True b. False Indicate whether the statement is true or false
In a circuit made up of inductor, resistance, ammeter, battery and switch in series, at which of the following times after the switch is closed is the rate of current increase greatest?
a. zero b. one time constant c. reciprocal of one time constant d. ten time constants
Starting outside the region with the magnetic field, a single square coil of wire moves across the region with a uniform magnetic field 
perpendicular to the page. The loop moves at constant velocity 
. As seen from above, a counterclockwise emf is regarded as positive. Roger claims that the graph shown below represents the induced emf. Martin says he's wrong. In which direction did the loop move over the plane of the page, or is Martin correct?
a.
Roger is correct: the loop moved from bottom to top.
b.
Roger is correct: the loop moved from top to bottom.
c.
Roger is correct: the loop moved from left to right.
d.
Roger is correct: the loop moved from right to left.
e.
Martin is correct: none of these directions of motion will produce the graph of emf vs t.