The current drawn by the heater is __________
Fill in the blank(s) with correct word
10 amperes
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Matter Waves: A proton and an electron are both accelerated to the same final speed. If ?p is the de Broglie wavelength of the proton and ?e is the de Broglie wavelength of the electron, then
A. ?p > ?e. B. ?p = ?e. C. ?p < ?e.
When light enters a medium with a higher index of refraction it
A. is absorbed. B. is bent towards the normal. C. continues in the same direction. D. is bent away from the normal.
What correction do you suggest to a friend who states that a step-up transformer boosts energy, while a step-down transformer reduces energy in a circuit?
What will be an ideal response?
A coin is 12 cm in front of a convex lens with focal length of magnitude 4.0 cm. Where is the image?
A) 8.0 cm behind the lens B) 6.0 cm in front of the lens C) 6.0 cm behind the lens D) 4.0 cm in front of the lens