Answered: A metal rod moves at a constant speed v…

Physics for Scientists and Engineers

10th Edition

ISBN:9781337553278

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter16: Wave Motion

Section: Chapter Questions

Problem 24P: Earthquakes at fault lines in the Earths crust create seismic waves, which are longitudinal (P...

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1. A metal rod moves at a constant speed v along two parallel metal rails connected by metal at one end as shown in the figure. A magnetic field of magnitude B = 0.125 T is directed out of the ground. (a) If the two rails are L = 25.0 cm apart and the speed of the rod is v = 38.0 cm / s, what is the electromotive force generated? (b) If the resistance of the rod is 18.0 omega and the resistance of the two rails and the connecting wire is neglected, what is the current flowing through the rod? (c) Find the rate of conversion to heat energy. (d) What is the magnitude of the force that causes the bar to move to the left?

1. 금속막대가 그림처럼 한쪽 끝이 금속으로 연결되어 있는
두 개의 나란한 금속레일을 따라 일정한 속도 r로 움직인
다. 크기 B%3D0.125 T의 자기장은 지면에서 나오는 방향이다.
(a) 두 레일이 L3D25.0cm떨어져 있고 막대의 속력이
338.0 cm/s라면 발생하는 기전력은 얼마인가? (b) 막대의
저항이 18.0 2 이고 두 레일과 연결선의 저항을 무시한다면 막대에 흐르는 전류는 얼마인가? (c) 열
에너지로 전환되는 비율을 구하여라. (d) 막대를 왼쪽으로 움직이게 하는 힘의 크기는 얼마인가?
В

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