# Ergs Sentence Examples

- If a body whose mass is m grammes be moving with a velocity of v centimetres per second relative to the earth, the available kinetic energy possessed by the system is Zmv 2
**ergs**if m be small relative to the earth. - The dynamical equivalent of the calorie is 4.18 X Io 7
**ergs**or C.G.S. - The closed figure a c d e a is variously called a hysteresis curve or diagram or loop. The area f HdB enclosed by it represents the work done in carrying a cubic centimetre of the iron through the corresponding magnetic cycle; expressed in
**ergs**this work is I HdB. - When the magnetizing current is twice reversed, so as to complete a cycle, the sum of the two deflections, multiplied by a factor depending upon the sectional area of the specimen and upon the constants of the apparatus, gives the hysteresis for a complete cycle in
**ergs**per cubic centimetre. - Denoting by W the work in
**ergs**done upon a cubic centimetre of the metal (=_fHdB or f HdI), he finds W =nips approximately, where n 47r is a number, called the hysteretic constant, depending upon the metal, and B is the maximum induction. - Working with two different specimens, he found that the hysteresis loss in
**ergs**per cubic centimetre (W) was fairly represented by o 00125B 1 6 and o o0101B 1 ' 6 respectively, the maximum induction ranging from about 300 to 3000. - Parshall quotes tests of six samples of iron, described as of good quality, which showed an average hysteresis loss of 3070
**ergs**per c.cm. - In many experiments, however, different inductions and frequencies are employed, and the hysteresis-loss is often expressed as
**ergs**per cubic centimetre per cycle and sometimes as horse-power per ton. - Taking the density of iron to be 7.7, the factor for reducing the loss in
**ergs**per c.cm. - After one of the rings had been annealed at 840°, its maximum permeability at ordinary temperatures was 4000 for H =1.84; when it had been subsequently annealed at 1150°, the maximum permeability rose to 4680 for H =1.48, while the hysteresis loss for 2 B = t 4000 was under 500
**ergs**per c.cm. - Hysteresis Loss in
**Ergs**per c.cm. - 8 The hysteresis of the soft annealed iron turned out to be sensibly the same for equal values of the induction at - 186° as at 15°, the loss in
**ergs**per c. cm. - In one case the hysteresis loss per cubic centimetre per cycle was 16,100
**ergs**for B =1 5,900, and only 1200**ergs**for B = 20,200, the highest induction obtained in the experiment; possibly it would have vanished before B had reached 21,000.2 These experiments prove that actual friction must be almost entirely absent, and, as Baily remarks, the agreement of the results with the previously suggested deduction affords a strong verification of Ewing's form of the molecular theory. - Having a charge Q repels a unit charge placed at a distance x from its centre with a force Q/x 2 dynes, and therefore the work W in
**ergs**expended in bringing the unit up to that point from an infinite distance is given by the integral W = Q x 2 dx = Hence the potential at the surface of the sphere, and therefore the potential of the sphere, is Q/R, where R is the radius of the sphere in centimetres. - 1
**ergs**/ second. - According to modern measurements the solar radiation imparts almost 3 grammecalories of energy per minute per square centimetre at the distance of the earth, which is about Iï¿½3 X io s
**ergs**per sec. per cm. - Just outside the earth's atmosphere is therefore about 4XIo 5
**ergs**; applying the law of inverse squares the value near the sun's surface would be Iï¿½8**ergs**. - System of expression in
**ergs**per gramme-degree-centigrade, or " calorie," is the most appropriate, as being independent of the value of gravity. - A more convenient unit of work or energy, in practice, on account of the smallness of the erg, is the joule, which is equal to 10.7
**ergs**, or one watt-second of electrical energy. - Let E be the effective elasticity of the aether; then E = pc t, where p is its density, and c the velocity of light which is 3 X 10 10 cm./sec. If = A cos" (t - x/c) is the linear vibration, the stress is E dE/dx; and the total energy, which is twice the kinetic energy Zp(d/dt) 2 dx, is 2pn2A2 per cm., which is thus equal to 1.8
**ergs**as above.