In the periodic table, the horizontal rows are called ________ and the vertical columns are called ________
Fill in the blank(s) with correct word
periods, groups
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Faraday's Law: A flux of 4.0 × 10-5 T ? m2 is maintained through a coil of area 7.5 cm2 for 0.50 s. What emf is induced in this coil during this time by this flux?
A. 8.0 × 10-5 V B. 4.0 × 10-5 V C. 3.0 × 10-5 V D. 2.0 × 10-5 V E. No emf is induced in this coil.
A computer accessory salesman attempts to convince you to purchase a "solar neutrino" shield for your new computer. (It's even "on sale"!) Why do you turn down this excellent offer?
A) Neutrinos rarely, if ever, interact with your computer. B) The Earth's natural magnetic field already offers excellent protection against the onslaught of solar neutrinos. C) Solar neutrinos are generated by solar winds, but we're in a solar minimum now, so the risk of damage is very low. D) There's no such thing as a solar neutrino.
Whenever the alternating current frequency in a series RLC circuit is halved,
a. the inductive reactance is doubled and the capacitive reactance is halved. b. the inductive reactance is doubled and the capacitive reactance is doubled. c. the inductive reactance is halved and the capacitive reactance is halved. d. the inductive reactance is halved and the capacitive reactance is doubled. e. the reactance of the circuit remains the same.
The larger the ripple voltage, the better the filter.
a. True b. False