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Understanding Electricity: A Quiz on Key Concepts

This quiz assesses your knowledge of fundamental concepts in electricity, including the nature of electric fields, historical applications, and key terminology.

#Electricity #Physics #Electrical Engineering #Electric Fields #Historical Applications

1 Direct current, as produced by example from a battery and required by most ________ devices, is a unidirectional flow from the positive part of a circuit to the negative.

2 [3] Patients suffering from ailments such as ________ or headache were directed to touch electric fish in the hope that the powerful jolt might cure them.

3 While this method, now known as the ________, is capable of lifting light objects and even generating sparks, it is extremely inefficient.

4 [11] A succession of sparks jumping from the key to the back of the hand showed that ________ was indeed electrical in nature.

5 Charge originates in the ________, in which its most familiar carriers are the electron and proton.

6 Long before any knowledge of electricity existed people were aware of shocks from ________.

7 ________, an analogy between the flow of water and electric current

8 a. ^  the ________ ēlectricus, "amber-like", came from the classical Latin electrum, itself coming from the Greek ἤλεκτρον, (elektron), meaning amber

9 The electric field acts between two charges in a similar manner to the way that the gravitational field acts between two ________, and like it, extends towards infinity and shows an inverse square relationship with distance.

10 Many interactions familiar at the macroscopic level, such as touch, friction or ________, are due to interactions between electric fields on the atomic scale.

💡 Interesting Facts

  • the Kiev tram was the first electric tramway in the Russian Empire, and the second one in Europe, after the Berlin Straßenbahn.
  • the versorium, the world's first electrical device, was invented in 1600 by one of Queen Elizabeth I's physicians.
  • the developer of the Mendota Hills Wind Farm (pictured) provided landowners with contracts for up to $1,500 per megawatt of electricity produced by wind turbines on their land.
  • the supply of natural gas and electricity in New Orleans, Louisiana ceased as a result of the General Strike of 1892, plunging the city into darkness for four nights.
  • the Byron Nuclear Generating Station (pictured) produced about 2,300 MWe in 2005, enough electricity to supply 2 million average U.S. households.
  • the Nintendo DS video game, Elebits: The Adventures of Kai and Zero, requires that players catch "elebits", which are small beings that pulse with electricity.
  • Haiti has the lowest coverage of electricity in the Western Hemisphere, with only about 12.5% of the population having regular access to electricity.
  • Iceland leads the world in renewable energy and is the first country to supply all electricity from renewable sources.
  • Tamale, Ghana obtains its electricity from Akosombo Dam in the central Ghana.
  • recent studies estimated that 34% of total electricity consumption in the Dominican Republic was not paid for, as poor service and high prices have induced theft through illegal connections and non-payment of electricity bills.
  • Earl Bakken who invented the wearable cardiac pacemaker and co-founded Medtronic also created The Bakken, the world's only library and museum devoted to electricity in life.
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