When a battery is used to light up a lightbulb,
A) the amount of electrical current flowing into one side of the battery is equal to the amount flowing out of the other side.
B) electric charge builds up on the battery terminals but none of it actually flows through the bulb.
C) electric charge builds up within the bulb, causing the bulb to light up.
D) some of the electrical current produced by the battery is consumed by the bulb, and the rest flows back into the battery.
E) all the electrical current produced by the battery is consumed by the bulb.
A
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An object is rotating with an angular momentum 4.00 kg ? m2/s while being acted on by a constant torque 3.00 N ? m . What is the angular speed of precession of the angular velocity of the object?
A) 1.33 rad/s B) 0.750 rad/s C) 12.0 rad/s D) zero E) It depends on the moment of inertia of the object.
In a Young's double-slit interference apparatus, by what factor is the distance between adjacent light and dark fringes changed when the separation between slits is tripled?
a. 1/9 c. 3 b. 1 d. 1/3
A two-slit arrangement with 60.3 ?m separation between the slits is illuminated with coherent light. If a viewing screen is located 2.14 m from the slits,
find the distance from the first dark fringe on one side of the central maximum to the second dark fringe on the other side. A) 52.3 mm B) 34.9 mm C) 69.7 mm D) 24.6 mm
The law of reflection, as well as the law of refraction, can be derived using Huygens' principle
Indicate whether the statement is true or false