In magnetic resonance, the time for 63% of transverse relaxation to occur; the value is a function of magnetic field strength and the chemical environment of the hydrogen nucleus; for protons in fat and in water, in a 1.5T magnet, about 60 milliseconds and 250 milliseconds, respectively.he effective T2 relaxation time, shorter than T2 because of magnetic field inhomogeneities; the observed time constant of free induction decay.
Including conversion and generation losses, a single full Leaf charge might take 25 kWh (19 kWh usable into the battery). Factor in expected usage to get an average kWh per month value.
One car in our tests that doesn't rely on fuel at all is the Nissan Leaf, which only runs on electric. However, this money-saving green machine may become useless in a power outage. Plug-in hybrids, such as the Chevrolet Volt, offer the best of both worlds--gas and electric. The Volt's combined range is a modest 325 miles, but the flexibility of energizing based on gasoline or electricity availability gives this car extra storm appeal. Looking at the list below, hybrid and diesel sedans tend to dominate for the long-haul combining excellent fuel economy with respectable tank size.