When a capacitor is fully charged, the current through the capacitor in a direct-current circuit is
a. zero.
b. at its maximum value. c. equal to the current in a resistive circuit in parallel with the capacitor circuit.
d. greater than the current in a resistor that is farther from the battery than the capacitor.
e. zero if it is the only capacitor, but maximum if there is another capacitor in series with it.
A
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According to the postulates of special relativity
A. the speed of light as measured by a stationary observer is the same as the speed of light measured by someone moving toward the light. B. Newton's laws do not apply for objects moving at high speeds. C. light can move faster when it moves with the luminiferous ether. D. it is impossible for an object to move faster than the medium it is moving through.
The diagram below illustrates the layout and light path of a reflecting telescope of the ____________________ design
Fill in the blank(s) with correct word
Compound Microscope: The focal lengths of the objective lens and the eyepiece of a microscope are 0.50 cm and 2.0 cm, respectively, and their separation is 6.0 cm when adjusted for minimum eyestrain for a person with a near point of 25.0 cm. If the microscope is focused on a small object, the magnitude of its final overall magnification is closest to
A. 50. B. 100. C. 150. D. 200. E. 250.
The total kinetic plus potential energy of a body
a. can be negative b. always stays constant if the body is freely falling c. always stays constant if friction is acting d. can remain constant even if the body's speed is decreasing