A capacitor is charging in a simple RC circuit with a dc battery. Which one of the following statements about this capacitor is accurate?
A) There is a magnetic field between the capacitor plates because charge travels between the plates by jumping from one plate to the other.
B) There is no magnetic field between the capacitor plates because no charge travels between the plates.
C) There is a magnetic field between the capacitor plates, even though no charge travels between them, because the magnetic flux between the plates is changing.
D) There is a magnetic field between the capacitor plates, even though no charge travels between them, because the electric flux between the plates is changing.
E) The magnetic field between the capacitor plates is increasing with time because the charge on the plates is increasing.
Question 2
The very earliest Greek theory of the structure of the universe pictured Earth at the center with the planets revolving around it at an unchanging rate in simple circles. The Greeks later revised this theory because
A) they didn't believe the theory was sufficiently beautiful to represent the eternal gods.
B) they observed that the planetary motions are irregular and include such things as retrograde motion.
C) certain observations led them to the conclusion that Earth has a spherical shape.
D) they came to believe that the sun should be at the center of things.
E) Actually, the Greeks never did abandon this theory--the theory was not altered until the time of Copernicus.
Testing a Simple Hypothesis
Typical hookup of a starting and charging tester.
Find the voltage, current and power for each resistor in the circuit below
Identify the junction nodes in the circuit shown in Figure 21-1.
Change in Blood Pressure through the Systemic Circuit
Descartes's model of simple reflexes