Electrical Circuits and Electric Currents App Download – Class 7 Science Notes e-Book PDF

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Electrical Circuits and Electric Currents Notes Questions with Answers PDF Download – Test 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 App Download: Free Class 7 Science Notes App for electrolysis, electrolytes, magnetic effect and electric current, simple circuits, electricity billing test prep for free online classes.

The MCQ: 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 e-Book (Free Chapter) for online school classes.

Electrical Circuits and Electric Currents MCQs – Practice Test 4 PDF Download

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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