Class 7 Science MCQs - Chapter 7
Electrical Circuits and Electric Currents Multiple Choice Questions (MCQ) PDF - 4
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Electrical Circuits and Electric Currents Questions & Answers PDF Download: MCQ Quiz 4
MCQ 16: Electrolysis is also used to purify
MCQ 17: The electrolyte used in the purification of copper is
MCQ 18: The strength of electromagnet can be increased by introducing a soft iron core
MCQ 19: For current to flow, the circuit should be
MCQ 20: Electric companies charge for
Class 7 Science Mock Tests
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