A 12.0 V battery is placed across a 4.00
resistor. If the current through the resistor is 2.80 A, what is the terminal voltage of the battery?
A. 12.0 V
B. 12.8 V
C. 11.6 V
D. 11.2 V
E. 9.6 V
D. 11.2 V
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A difference between the special and general theories of relativity is that
A. special relativity is valid only in stationary reference frames. B. special relativity deals with accelerated systems. C. general relativity deals with accelerated systems. D. general relativity only deals with swiftly moving objects.
Energy used for production of ethanol from corn is _____than the energy output
a. more b. less c. the same
Which process will double the power given off by a resistor?
a. doubling the current while making the voltage half as big b. doubling the current while doubling the resistance c. doubling the current by doubling the voltage d. doubling the current by making a resistance half as big
If the distance from a point source of EM radiation is doubled, the intensity is
A. doubled B. the same as it was before. C. reduced by a factor of four. D. increased by a factor of four. E. cut in half.