Which Joe gave his name to ‘sloppy joes’? We look at five interesting sandwiches and their lexical origins.
plural noun
PhysicsTwo laws concerning electric networks in which steady currents are flowing. The first law states that the algebraic sum of the currents in all the conductors that meet in a point is zero. The second law states that the algebraic sum of the products of current and resistance in each part of any closed path in a network is equal to the algebraic sum of the electromotive forces in the path.
- ‘In order to quickly measure transmission on any given night, we thus use the alternative approach based on Kirchhoff's law.’
- ‘In working with Kirchhoff's law, positive and negative polarities are assigned in the direction of current flow.’
- ‘Since Kirchhoff's laws are derived from general physical properties of electricity, they are applicable to all kinds of electric circuits.’
- ‘Proficiency in analyzing circuits with Kirchhoff's laws, particularly with regard to the sign conventions and with solving simultaneous equations, comes with practice.’
- ‘For branched cycles, Kirchhoff's law can be applied to calculate the resistance of the complete network, in analogy to its use for electric circuits.’
Origin
Mid 19th century: named after G. R. Kirchhoff(see Kirchhoff, Gustav Robert).
Pronunciation:
Further reading
12 synonyms for fool
Read moreAre you looking for a word for a foolish person? We explore twelve interesting words to describe the dunderheads in your life.
6 ‘run’ phrases you probably don’t know
Read moreBefore you run for the hills, let’s run through a list of ‘run’ expressions that are running through our minds.