A light bulb used in a slide projector draws a current of 6 amperes when operating on 120 volts.The power consumed by the light bulb in watts is
a. 0.05 b. 20.
c. 720 d. none of the above.
c
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Gas flows away from the Sun in the _______________, which can be considered an extension of the corona
Fill in the blank(s) with correct word
A habitable zone
A) exists around all stars B) only exists around stars which are identical to the Sun C) only exists around stars which are similar to our Sun D) only exists around one star, the Sun
A current carrying loop of wire lies flat on a table top. When viewed from above, the current moves around the loop in a counterclockwise sense
(a) For points OUTSIDE the loop, the magnetic field caused by this current A) circles the loop in a clockwise direction. B) circles the loop in a counterclockwise direction. C) points straight up. D) points straight down. E) is zero. (b) For points INSIDE the loop, the magnetic field caused by this current A) circles the loop in a clockwise direction. B) circles the loop in a counterclockwise direction. C) points straight up. D) points straight down. E) is zero.
When an electron goes from an excited state to the ground state,
a. energy is absorbed. b. a photon is absorbed. c. a photon is emitted. d. none of these occur.