The polarity of an unmarked magnet can be determined using:

+3 votes

asked Mar 11, 2019 in Mathematics by kratos

A. a charged glass rod

B. a compass

C. an electroscope

D. another unmarked magnet

E. iron filings

Please log in or register to add a comment.

+4 votes

answered Aug 24, 2020 by kratos

Best answer

B. a compass

Snow Theme by Q2A Market

...