Hartford Steam Boiler Inspection and Insurance Company · Hartford, Ct. : Hartford Steam Boiler Inspection and Insurance Co · leaf 175
the needle lies parallel withthe plane of the coil — that is, so that a person looking directly churn upon the instru-ment from above woidd not see the needle at all. When a current is passed through thecoil, the needle swings out towards a position at right angles to the coil. The amountof the… … Fig. 2. — A Galvanometer. I.Mill | Til i: LOCOMOT I V 1: 163 ^\ f SOLUTION 0F _J NITRATE ■ OF ~ SILVER . Auother waj of comparing electric currents is by means of the device shown inFig. :5. This consists of a glass vessel containing a solution of (say) nitrate of .silver.into which two silver…
Locomotives · Steam-boiler explosions
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