An user German
says…

Zum
  Anlegen
Noun
  einer
Determiner
  Spannung
Noun
  sind
Auxiliary
  zwei
2
Numeral
  Elektroden
Noun
  notwendig
Adjective
.

Two electrodes are necessary to apply a voltage.
Words and sentences
New
zum

  1. Contraction of zu dem (“to the; for the”).
  2. Contraction of zu einem (“to a; for a”).

New
Anlegen

gerund of anlegen

New
einer

New
Spannung

  1. voltage
  2. tension
  3. suspense (emotion of anticipation, excitement, anxiety or apprehension)

New
sind

  1. first-person plural present of sein
  2. second-person polite present of sein
  3. third-person plural present of sein

2
New
zwei

two (numerical value represented by the Arabic numeral 2; or describing a set with two components)

New
Elektroden

plural of Elektrode

New
notwendig

necessary; essential; indispensable

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