The venomous Red-Bellied Black Snake grows to lengths of up to two metres long, and has striking colouration. With stunning red edges to its belly scales and a shiny black back, this snake surely ranks amongst Australia's most stunning venomous snakes.
For other uses, see EMF (disambiguation). Electromotive force, also called emf (denoted E {\displaystyle {\mathcal {E}}} and measured in volts), is the voltage developed by any source of electrical energy such as a battery or dynamo. It is generally defined as the electrical potential for a source in a circuit.
Specifications: 1  Physical format: batteries are grouped by physical size, type and placement of the terminals, and mounting style. 2  Ampere-hours (AÂ·h) is a unit related to the energy storage capacity of the battery. 3  Cranking amperes (CA): the amount of current a battery can provide at 32 Â°F (0 Â°C).