The most difficult electricity riddles A list of electricity related questions that are most often answered incorrectly Technology quiz What is the unit of the conductance?1S (siemens). Conductance (conductivity) is the reverse of the resistance. So it is a measure of the susceptibility of the element to the flow of the electric current. Siemens is the unit of electric conductance named after German inventor and industrialist Werner von Siemens, founder of the well known Siemens company.hard 41% 1Ω (ohm)1Ω (ohm)20%1S (siemens)1S (siemens)41%1H (henry)1H (henry)13%1T (tesla)1T (tesla)25%Created by: Paweł Kołodziejczyk. Statistics based on 2859 answers in 2 languages »names riddles » The grand Itaipu dam generates power for two countries. Which ones?Brazil and Paraguay. The Itaipu Dam is located on the Paraná River between Brazil and Paraguay. It is still the largest dam in terms of annual energy generation, even though its capacity is smaller than Three Gorges Dam. Of the twenty generator units, ten generate at 50 Hz for Paraguay and ten generate at 60 Hz for Brazil.hard 49% Brazil and ParaguayBrazil and Paraguay49%Argentina and UruguayArgentina and Uruguay19%Colombia and VenezuelaColombia and Venezuela17%Ecuador and PeruEcuador and Peru14%Created by: stig. Statistics based on 12021 answers in 2 languages »geography of South America riddles » Where does electric eel occur in the wild?In South America. Electric eels inhabit muddy waters of the Amazon and Orinoco basins floodplains and swamps. Fortunately, these are remote and uninhabited areas, as electric eels can easily kill a human. Although it doesn't eat such large animals (it has no teeth and can swallow only small mammals), a series of electric shocks is enough to stun and drown a horse.hard 49% in Australiain Australia19%in South Americain South America49%in Africain Africa9%in South-East Asiain South-East Asia21%Created by: Sumit Tamang. Statistics based on 14800 answers in 2 languages »animals of South America riddles » What may happen to a lead battery when overcharged?Explosion. Any lead-acid battery system when overcharged will produce hydrogen gas by electrolysis of water. If the rate of overcharge is small, the vents of each cell allow the dissipation of the gas. A severe overcharge may produce a flammable concentration of hydrogen.hard 51% acid leakacid leak23%polarization switchpolarization switch10%explosionexplosion51%sulfurizationsulfurization13%Created by: globalquiz.org. Statistics based on 16503 answers in 2 languages »cars riddles » How are the laws concerning the flow of the current in forks of the electric circuit called?Kirchhoff's circuit laws. Kirchhoff's current law is also called Kirchhoff's first law, Kirchhoff's point rule, or Kirchhoff's junction rule (or nodal rule). The principle of conservation of electric charge implies that: At any node (junction) in an electrical circuit, the sum of currents flowing into that node is equal to the sum of currents flowing out of that node or equivalently The algebraic sum of currents in a network of conductors meeting at a point is zero. hard 58% Ampère's circuit lawsAmpère's circuit laws14%Kirchhoff's circuit lawsKirchhoff's circuit laws58%Faraday's circuit lawsFaraday's circuit laws11%Ohm's circuit lawsOhm's circuit laws16%Created by: Paweł Kołodziejczyk. Statistics based on 6349 answers in 2 languages »physics riddles » What kind of building is that?Solar power plant. In The PS10 Solar Power Plant, 624 movable mirrors concentrate the sun's rays to the top of a 115 meter (377 ft) high, tower where a steam turbine is located. The plant is located near Seville, Spain.average 66% superlighthousesuperlighthouse15%solar power plantsolar power plant66%tent-type greenhousetent-type greenhouse6%a fountain in Dubaia fountain in Dubai11%Created by: globalquiz.org. Statistics based on 9067 answers in 2 languages »light riddles » Play technology quiz and see all the questions.