The secondary coil of a neon sign transformer provides 7500. V at 0.010 A. The primary coil operates on 120. V. What current does the primary draw?
A) 0.625 A
B) 1.66 A
C) 333. mA
D) 6.25 × 10-4 A
E) 0.16 A
A
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Navigators can find their latitude in the northern hemisphere by measuring the angle from the northern horizon to the north celestial pole
Indicate whether the statement is true or false
What is the correct order of planetary development?
a. differentiation, cratering, flooding, slow surface evolution b. cratering, flooding, differentiation, slow surface evolution c. slow surface evolution, differentiation, flooding, cratering d. differentiation, flooding, cratering slow surface evolution e. flooding, slow surface evolution, cratering, differentiation
In organic molecules, a bromine atom will normally form how many bonds?
a. 2 b. 3 c. 4 d. 1 e. 0
A high-resistance material is used as an insulator between the conductors of a length of coaxial cable. The resistance material, which forms a hollow tube, has an inner radius a and an outer radius b, and the insulator provides a resistance R between the conductors. If a second insulator, made of the same material and having the same length, is made with double both the inner radius and the outer
radius of the first, what resistance would it provide between the conductors? a. R b. 2 R c. 4 R d. (ln2)R e. R/(ln2)