A series circuit has equal values for resistance, capacitive reactance, and inductive reactance. The phase angle for this circuit is:
a. 180°.
c. 60°.
b. –60°.
d. not given.
D
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Thermodynamic Processes: An ideal gas is compressed isothermally to one-third of its initial volume. The resulting pressure will be
A. three times as large as the initial value. B. less than three times as large as the initial value. C. more than three times as large as the initial value. D. equal to the initial value. E. impossible to predict on the basis of this data.
What actually produces the energy in the Sun?
A: Matter and anti-matter annihilation in the corona of the Sun B: A LOT of electricity occurring in the convection zone C: Mass of reacting elements is larger than that of the products (some converted to energy in the core) D: Gravitational collapse of the chromosphere E: A combination of all of the above
A light bulb is connected to a battery as shown in Figure A below. When a second bulb is connected as shown in Figure B, what happens to the brightness of the original bulb?
A square, flat loop of wire is pulled at constant velocity through a region of uniform magnetic field directed perpendicular to the plane of the loop as shown in Figure OQ31.5. Is current induced in the loop?