A fully charged parallel-plate capacitor remains connected to a battery while a dielectric is slid between the plates. Does E between the plates increase, decrease, or stay the same?
1.increase
2.decrease
3.remains the same
3
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Which of the following is not a type of polarization?
(a) Electron current flow (b) Electronic (c) Ionic (d) Orientational
If you connect two identical storage batteries together in series ("+" to "-" to "+" to "-"), and place them in a circuit, the combination will provide
A) zero volts. B) twice the voltage, and different currents will flow through each. C) twice the voltage, and the same current will flow through each. D) the same voltage, and different currents will flow through each. E) the same voltage, and the same current will flow through each.
Determine the drag force acting per unit length in a 1 in diameter steel cable when air at 60ºF, 14.7 psia moves trasnversely (perpendicularly) across the cable at 30 mph.
Motor 1 does 30 J of work in 10 s, motor 2 does 2 J of work in 5 s, motor 3 does 7 J of work in 2 s, and motor 4 does 7 J of work in 3 s. List the motors in order of highest power produced to lowest power produced
a. 2, 4, 1, 3 c. 1, 3, 4, 2 b. 3, 4, 1, 2 d. 3, 1, 4, 2