A current may be induced in a coil by
a. moving one end of a bar magnet through the coil.
b. moving the coil toward one end of the bar magnet.
c. holding the coil near a second coil while the electric current in the second coil is increasing.
d. all of the above. e. none of the above.
D
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Ideal Gas Law: How many moles are there in 2.00 kg of copper? The atomic weight of copper is 63.5 g/mol and its density is 8.90 g/cm3.
A. 15.3 B. 31.5 C. 51.3 D. 53.1
Compared to a single lamp connected to a battery, two lamps connected in parallel to the same battery will draw
A) more current. B) less current. C) the same current.
The expression V = IR is called ______________
Fill in the blank(s) with correct word
A building made with a steel structure is 650 m high on a winter day when the temperature is 0° F. How much taller (in cm) is the building when it is 100° F? (The linear expansion coefficient of steel is 11 × 10^?6 (°C)?1.)
a. 71 b. 36 c. 40 d. 46 e. 65