Lessons in practical electricity; principles, experiments, and arithmetical problems, an elementary text-book (1902)
Swoope, Coates Walton. [from old catalog] · New York, D. Van Nostrand company · leaf 310
distance is now only If inches. How doyou explain this? 2. What is the direction of the current in the wires in question 1 ? 3. The current is reversed in both wires in question 1. How willthey now be affected ? 4. Make a complete sketch of a Thomson recording wattmeterconnected between the two… … 259.—Connections ofThomson RecordingWattmeter. 292 PRACTICAL ELECTRICITY. to bring the movable coil to zero position. Some lamps are nowturned off and the angle corresponding with the zero position is 81°.The constant of the instrument is 2. What is the strength of cur-rent in each case ? Ans. 22 ;…
Electricity · Magnetism
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