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)19%1S (siemens)1S (siemens)41%1H (henry)1H (henry)12%1T (tesla)1T (tesla)25%Created by: Paweł Kołodziejczyk. Statistics based on 6332 answers in 2 languages »names riddles » What is held in Leyden jar?Electrical charges. Leyden jar is a device that stores static electricity between two electrodes on the inside and outside of a glass jar. It was the first known form of a capacitor (condenser). The glass plays the role of s dielectric material. hard 47% Radioactive elementsRadioactive elements32%Electrical chargesElectrical charges47%AlcoholAlcohol4%AcidsAcids14%Created by: smyru. Statistics based on 4397 answers in 2 languages »physics 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 leak24%polarization switchpolarization switch11%explosionexplosion51%sulfurizationsulfurization12%Created by: globalquiz.org. Statistics based on 26739 answers in 2 languages »electronics 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 51% Brazil and ParaguayBrazil and Paraguay51%Argentina and UruguayArgentina and Uruguay19%Colombia and VenezuelaColombia and Venezuela16%Ecuador and PeruEcuador and Peru12%Created by: stig. Statistics based on 21390 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 51% in Australiain Australia18%in South Americain South America51%in Africain Africa8%in South-East Asiain South-East Asia21%Created by: Sumit Tamang. Statistics based on 22884 answers in 2 languages »animals of South America 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 56% Ampère's circuit lawsAmpère's circuit laws14%Kirchhoff's circuit lawsKirchhoff's circuit laws56%Faraday's circuit lawsFaraday's circuit laws10%Ohm's circuit lawsOhm's circuit laws17%Created by: Paweł Kołodziejczyk. Statistics based on 18446 answers in 2 languages »technology 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 65% superlighthousesuperlighthouse15%solar power plantsolar power plant65%tent-type greenhousetent-type greenhouse7%a fountain in Dubaia fountain in Dubai12%Created by: globalquiz.org. Statistics based on 14735 answers in 3 languages »light riddles » Play technology quiz and see all the questions.