What's the difference between ampere and picoampere?
Ampere
Definition:
(n.) Alt. of Ampere
(n.) The unit of electric current; -- defined by the International Electrical Congress in 1893 and by U. S. Statute as, one tenth of the unit of current of the C. G. S. system of electro-magnetic units, or the practical equivalent of the unvarying current which, when passed through a standard solution of nitrate of silver in water, deposits silver at the rate of 0.001118 grams per second. Called also the international ampere.
Example Sentences:
(1) It was found, that a stunning voltage lower than 250 V under practise conditions is not acceptable from the animal point of view, because 1.2 ampere were not reached within 1 second.
(2) Currents of several amperes, at radio frequencies, can easily and efficiently be obtained.
(3) The current relationship is I = 1.87 W(0.88) where I is the peak current in amperes and W is the body weight in kilograms.
(4) When grown to confluence on 8.0-microns pore size polycarbonate filters, LLC-PK1 cells formed tight junctions between adjacent cells which offered an electrical resistance to a nondestructive 20-mu ampere alternating current passed across the cell layer.
(5) Alternating current, 350 micro-amperes, 50 KHz constant, was applied to the outer electrode, and impedance changes were detected via the inner electrode.
(6) There are a range of reasons why Sky would be looking at such a big structural change to its pay-TV service,” said Richard Broughton, a director at Ampere Analysis.
(7) It was found that currents less than 500 micro-amperes caused interference with heart rhythm, and in some of the dogs ventricular fibrillation developed.
(8) After the application of 1-ampere currents at 60 Hz, animals were monitored from 1 to 4 days.
(9) The TE stimulus is a 10 mu-ampere, 10 Hz, pulsed current transmitted via electrodes in the pinnae.
(10) This should be in terms of sensitivity to a current dipole measured in ampere-meters (Eq.
(11) The volt-ampere characteristics of the membrane (VAC) and the curves of stationary inactivation (CSI) shifted along the potentials axis.
(12) An amplifier with non-linear volt-ampere characteristics for recording low-amplitude nerve pulse activity is offered.
(13) The shape of the volt-ampere characteristics (VA) of ionic channels formed by gramicidin A did not depend on the antibiotic concentration in the membrane.
(14) A method of measurement of the non-linearity coefficient of volt-ampere characteristics of the type i(U) approximately = U(1 + beta U2) has been developed for ionic channels formed by gramicidin A, using the third harmonic of the membrane current.
(15) Solutions of glucoheptonate and sodium pertechnetate (Tc-99m) were subjected to electrolysis at various ampere-time products until a charge was found that consistently promoted tagging of greater than 90% efficiency.
(16) The ‘Netflix effect’ has impacted the whole TV industry, not just in terms of how broadcasters seek to reach their viewers, but also in terms of focus on original TV drama and the way content is packaged for consumption,” said Guy Bisson, research director at Ampere Analysis.
(17) Netflix does not disclose audience figures, but according to experts Ampere Analysis, about a third of the estimated 5.2 million Netflix UK subscribers are House of Cards fans.
(18) The dependence of Ca2+ flux release from the sarcolemmal vesicles on the membrane potential value (-60-+27 mV) is bell-shaped and qualitatively relative to the volt-amper characteristics of the steady state Ca2+ flux in single smooth muscle cells.
(19) Electrical stunning is acceptable from the animal point of view, if a minimal current of 1.2 ampere is reached, immediately after the beginning of the stunning operation.
(20) The chamber was designed to provide an ionization current of about 10(-8) ampere with a nominal 10 curie iridium-192 source.
Picoampere
Definition:
Example Sentences:
(1) Stimulus-evoked IPSCs varied in amplitude from less than ten to hundreds of picoamperes.
(2) The receptor neurons had high input resistances, and action potentials could be elicited by picoampere amounts of depolarizing current.
(3) Calcium- and depolarization-dependent spontaneous currents of several to hundreds of picoamperes occurred with rapid rise times of 0.8 to 3 milliseconds and decays at least ten times as long.
(4) A device which can generate rectangular currents in the picoampere range is described.
(5) From these field measurements, we infer that each weeted pollen drives a steady current of a few hundred picoamperes through itself.