At what frequency will the Inductive Reactance of 44. mH be equal to the Capacitive Reactance of a 27. pF capacitor?
What will be an ideal response?
0.15 MHz
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As you found in Part A, early Mars had both core convection and a strong magnetosphere. What is the connection between these two things?
a. Both core convection and a magnetosphere can exist only a very young planet. b. Core convection creates volcanism and outgassing, the gas creates the magnetosphere. c. Core convection helps generate a magnetic field, and the magnetic field creates the magnetosphere. d. Both core convection and a magnetosphere are consequences of a strong greenhouse effect.
A conducting sphere of radius 20.0 cm carries an excess charge of +15.0 µC, and no other charges are present. (k = 1/4??0 = 8.99 × 109 N ? m2/C2 )
The potential (relative to infinity) due to this sphere at a point 12.0 cm from its center is closest to A) zero. B) 674 kV. C) 1130 kV. D) 3380 kV. E) 9380 kV.
The unit of electric charge, the coulomb, is the charge on a
A) single electron. B) specific large number of electrons. C) neutron. D) specific number of neutrons. E) quark.
A series circuit consists of three identical lamps connected to a battery as shown in Figure OQ28.15. The switch S, originally open, is closed. What then happens to the brightness of lamp B?