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Science Teacher Help

- Chemistry - Case and Canal : : Measure : : Other

Science Teacher Help

- Electronic - Basic : : Communication Apparatus: : Electron : : Logic gate and Switch : : Switch and Relay

  : : Switch and Connects : : Transformer and Coil
Science Teacher Help - Math - Algebra : : Geometry
Science Teacher Help - Physics - Basic : : Calorific : : Electricity : : Experiment : : Mechanics : : Optics
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6. Electronic – Switch and Connects