Chapter 7: Class 7 Science Exam Tests
Class 7 Science MCQs - Chapter 7
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MCQ 146: One kilowatt is equal to
MCQ 147: Small magnets are used in
MCQ 148: In most of the loudspeakers, electrical signals pass through a
MCQ 149: 'Electromagnet' can be made stronger by increasing
MCQ 150: The filament bulb glows, when it reaches the temperature of
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