A student has made the statement that the electric flux through one half of a Gaussian surface is always equal and opposite to the flux through the other half of the Gaussian surface. This is
a. never true.
b. never false.
c. true whenever enclosed charge is symmetrically located at a center point, or on a center line or centrally placed plane.
d. true whenever no charge is enclosed within the Gaussian surface.
e. true only when no charge is enclosed within the Gaussian surface.
e
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A gas in which the pressure no longer depends on the temperature of the gas is said to be ____________________
Fill in the blank(s) with correct word
It takes approximately ___________ seconds for a particle moving at the speed of light to travel the 150 million kilometers from the Sun to Earth
Fill in the blank(s) with correct word
Two capacitors with capacitances of 2.0 ?F and 0.40 ?F, respectively, are connected in series. The system is connected to a 50-V battery. What electrical potential energy is stored in the 2.0-?F capacitor?
a. 2.5E–3 J b. 5.0E–4 J c. 8.3E–5 J d. 6.9E–5 J e. 1.4E–5 J
Sundogs and halos of the Sun and the Moon are caused by:
a. refraction by the atmosphere. b. refraction by water droplets. c. reflection of the object in water. d. scattering by molecules in the air. e. refraction by atmospheric ice crystals.