Fundamental Principles for the Illumination of a Picture

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An important property of the mutual inductance is that M21 = M12. The heavy line represents a straight Sec. 7.2] THE TRIODE 209 portion of the load characteristic on either side of the point Q. E B — e b is the potential dr^p in the load resistance and e b is the drop in the tube. These things, which would once have been labeled magic, are now ordinary ways we use the electromagnetic spectrum. Instead it defines two subsystems known as electromagnetic units (e.m.u. or CGSm) and electrostatic units (e.s.u. or CGSe).

Pages: 73

Publisher: Springer; 1935 edition (January 1, 1953)

ISBN: 940176459X

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