Class 7 Courses

Chapter 7: Class 7 Science Exam Tests

Class 7 Science MCQs - Chapter 7

Electrical Circuits and Electric Currents Trivia Questions and Answers PDF - 4

The Electrical circuits and electric currents Trivia Questions and Answers PDF, electrical circuits and electric currents Quiz Answers PDF e-Book download Ch. 7-4 to study Grade 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 Trivia App: Free download certification app for electrolysis, electrolytes, magnetic effect and electric current, simple circuits, electricity billing test prep for free online classes.

The Trivia Quiz: Electrolysis is also used to purify; "Electrical Circuits and Electric Currents Quiz" App APK Download with answers: Copper; Sodium; Silver; Potassium; to study online courses. Practice Electrolysis MCQ Questions, download Kindle eBook (Free Sample) for online school classes.

Electrical Circuits and Electric Currents Questions & Answers PDF Download: MCQ Quiz 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 App (Android & iOS)

Electrical Circuits and Electric Currents App (Android & iOS)

7th Grade Science App (Android & iOS)

7th Grade Science App (iOS & Android)

6th Grade Science App (Android & iOS)

6th Grade Science App (Android & iOS)

8th Grade Science App (Android & iOS)

8th Grade Science App (iOS & Android)