A course of experiments in physical measurement (1897)
Whiting, Harold, d. 1895 · Boston, D.C. Heath and Co. · leaf 565
to keep the motor (M) in motioji. Thusif the motor can be started with 2, but not with 1Bunsen cell, a battery of 4 Biiiisen cells should be em- k;s^ ■■■. _ ^J-. ■~rr ■^i 5-_- « ■I i Fig. 263. ployed. The poles of the battery are to be connectedthrough a volt-meter or its equivalent (see Exp.… … FiG. 204. nected by a cord passing round the pulley of themotor. Ordinary letter-balances will probably an-swer for this experiment. The tension of the cordshould be such as to reduce the speed of the motor
Physics
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