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Class 7 Science Exam Prep: Practice Test 4 (Chapter 6)

Electrical Circuits and Electric Currents Notes Questions & Answers PDF Download - 4

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The Electrical circuits and electric currents Notes Questions and Answers PDF (Electrical Circuits and Electric Currents Quiz Answers PDF e-Book) download Ch. 6-4 to study Class 7 Science Course. Practice Electrolysis MCQ PDF, Electrical Circuits and Electric Currents Quiz Questions and Answers to study online courses. The Electrical Circuits and Electric Currents Notes App Download: Free Class 7 Science App for electrolysis, electrolytes, magnetic effect and electric current, simple circuits, electricity billing test prep for free online classes.

The Quiz: Electrolysis is also used to purify; "Electrical Circuits and Electric Currents" App APK Download with answers: copper, sodium, silver, and potassium to study online courses. Practice Electrolysis MCQ Questions, download Kobo eBook (Free Sample) for online school classes.

Electrical Circuits and Electric Currents Test Questions and Answers PDF Download: MCQ 4

MCQ: 16

Electrolysis is also used to purify

  1. sodium
  2. copper
  3. silver
  4. potassium
MCQ: 17

The electrolyte used in the purification of copper is

  1. copper nitrate
  2. copper chloride
  3. copper sulphate
  4. copper carbonate
MCQ: 18

The strength of electromagnet can be increased by introducing a soft iron core

  1. outside the coil
  2. inside the coil
  3. round the coil
  4. above the coil
MCQ: 19

For current to flow, the circuit should be

  1. parallel
  2. in series
  3. complete
  4. hot
MCQ: 20

Electric companies charge for

  1. energy
  2. power
  3. resistance
  4. units

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Electrical Circuits and Electric Currents Notes App (iOS & Android)

Electrical Circuits and Electric Currents Notes App

7th Grade Science Notes App (Android & iOS)

7th Grade Science Notes App

Earth Science Notes App (Android & iOS)

Earth Science Notes App

6th Grade Science Notes App (iOS & Android)

6th Grade Science Notes App