Chapter 7: Class 7 Science Exam Tests
Class 7 Science MCQs - Chapter 7
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MCQ 251: 'Semiconductors' are used in
MCQ 252: When there is high current, the circuit breaker is switched off because of
MCQ 253: When the current flows opposite way, the cone is pulled
MCQ 254: The repulsion between magnetic field of coil and permanent magnet makes the coil
MCQ 255: The complete equipment of 'electrolysis' is known as
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