. Electronic apparatus for biological research. Electronic apparatus and appliances; Biology -- Research. .R(=r) Figure delta (Figure ). This gives the 'bridged T\ Notice that two of the four resistances are fixed and equal the characteristic resistance of the section. The other two have values which are elegantly reciprocal, and easy to remem- R(=rJ Figure Alternating current in circuits containing only resistance— values All the expressions so far derived have begun from the assumption of a direct current or direct voltage generator. They are all equally true for al
. Electronic apparatus for biological research. Electronic apparatus and appliances; Biology -- Research. .R(=r) Figure delta (Figure ). This gives the 'bridged T\ Notice that two of the four resistances are fixed and equal the characteristic resistance of the section. The other two have values which are elegantly reciprocal, and easy to remem- R(=rJ Figure Alternating current in circuits containing only resistance— values All the expressions so far derived have begun from the assumption of a direct current or direct voltage generator. They are all equally true for alternating current. Since the variable 'time' has not entered into any of the equations (except those for quantity of electricity and for energy in the very first section) they can be regarded as applying either to steady conditions or to instantaneous conditions; wherever V and / have appeared, they can be replaced by instantaneous values v and /, equal respectively to V sin (nt 23. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Donaldson, Peter Eden Kirwan. New York, Academic Press
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