Electricity and magnetism for advanced students (1920)
Starling, Sydney George, 1873- · London Longmans, Green · leaf 255
easure fromthe force and the dimensions of thecoils, so that it is necessary tocalibrate the instrument by meansof a silver voltameter. The fourcoils. A, B, C, D (Fig. 244), arefixed, and the two, E and F, areattached to the moveable armwhich also carries a horizontal scale on which the weight W… … Fig. 244. II. KELVIN WATT-BALANCE 245 by the conducting wires which bring the current to E and F, and thecentre of gravity of the arm can be adjusted by means of a metal flacuntil, when there is no current, the arm is horizontal when the slidingweight W is on the zero mark. The couple due to the…
Electricity · Magnetism
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