A student is using a voltaic cell and voltmeter to identify two polished metal strips, which could be either zinc or iron. No voltage is detectable, however, when the two strips are used as electrodes. What conclusion is best? Both metals are the same. One must be iron and the other zinc, but you can't tell which one is which. They are both probably iron. They are both probably zinc.

A student is using a voltaic cell and voltmeter to identify two polished metal strips, which could be either zinc or iron. No voltage is detectable, however, when the two strips are used as electrodes. What conclusion is best? Both metals are the same. One must be iron and the other zinc, but you can't tell which one is which. They are both probably iron. They are both probably zinc.

EBK ELECTRICAL WIRING RESIDENTIAL

19th Edition

ISBN:9781337516549

Author:Simmons

Publisher:Simmons

Chapter27: Service-entrance Equipment

Section: Chapter Questions

Problem 44R

See similar textbooks