What is the inductance of a coil that has an emf of 0.82 V induced in it while the current through it is changing at 2.0 A/s?
A. 3.3 H
B. 33 mH
C. 1.6 H
D. 41 mH
E. 0.41 H
E. 0.41 H
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A parallel plate capacitor is constructed with Teflon (dielectric constant 2.1 ) between the plates. This 12.6 ?F capacitor has been charged to 1.5 volts. The Teflon is then pulled out (removed)
(a) What charge was originally stored? (b) After removing the Teflon, what potential is across the plates?
Why don't most of the particles that make meteors actually reach the surface of Earth?
A) They are too small and burn up in the atmosphere. B) They reflect off the atmosphere and return to space. C) They are too small and are slowed to a stop in the atmosphere. D) They are deflected by the solar wind. E) They are deflected by the gravity of the Moon.
Spherical Mirrors: An object is 50 cm from a concave mirror of radius of curvature of magnitude 60 cm. How far is the image from the mirror?
A. 19 cm B. 35 cm C. 60 cm D. 75 cm E. 120 cm
A. +x direction B. -x direction C. +y direction D. -y direction E. +z direction F. -z direction T. The field is zero.