22. u and mE A parallel-plate air capacitor is made up of two flat plates of area mm² 4 heldmm 1.5 apart. The capacitor is charged to a potential difference of V 220. What is theenergy density in the space between the plates?A. 4.82 x 10-13 J/mB. 5.71 x 10-7 J/m³C. 9.56 x 10-2 J/m³D. 1.08 x 1010 J/m²24. Drift King. A 14-gauge copper wire (diameter of 1.63 mm) carries a current of 2.64 A. Thefree-electron density of copper is 8.50x 1028 m-³. What is the drift velocity of the electrons inthe wire?A. 9.30 × 10-5 m/sC. 9.30 × 10-1" m/sB. 2.33 x 10-5 m/sD. 2.33 × 10-1" m/s

Answered: Image /qna-images/answer/1dcbd661-93a5-40c8-9ab7-8513e23f206b.jpg

22. u and mE A parallel-plate air capacitor is made up of two flat plates of area mm² 4 held mm 1.5 apart. The capacitor is charged to a potential difference of V 220. What is the energy density in the space between the plates? A. 4.82 x 10-13 J/m³ B. 5.71 x 10-7 J/m² C. 9.56 x 10-2 J/m³ D. 1.08 x 1010 J/m³ 24. Drift King. A 14-gauge copper wire (diameter of 1.63 mm) carries a current of 2.64 A. The free-electron density of copper is 8.50× 10²% m³. What is the drift velocity of the electrons in the wire? A. 9.30 × 10-5 m/s C. 9.30 × 10-1" m/s B. 2.33 × 10-º m/8 D. 2.33 × 10-1" m/s

22. u and mE A parallel-plate air capacitor is made up of two flat plates of area mm² 4 held mm 1.5 apart. The capacitor is charged to a potential difference of V 220. What is the energy density in the space between the plates? A. 4.82 x 10-13 J/m³ B. 5.71 x 10-7 J/m² C. 9.56 x 10-2 J/m³ D. 1.08 x 1010 J/m³ 24. Drift King. A 14-gauge copper wire (diameter of 1.63 mm) carries a current of 2.64 A. The free-electron density of copper is 8.50× 10²% m³. What is the drift velocity of the electrons in the wire? A. 9.30 × 10-5 m/s C. 9.30 × 10-1" m/s B. 2.33 × 10-º m/8 D. 2.33 × 10-1" m/s

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter7: Electric Potential

Section: Chapter Questions

Problem 83P: A lightning bolt strikes a tree, moving 20.0 C of charge through a potential difference of 1.00102...

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