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A dynamic lightning bolt strikes diagonally across a dark background, illuminating the void with electric energy.
Heat transfer occurs through conduction, convection, and radiation. Three distinct modes involving direct contact, fluid movement, and electromagnetic waves.
Blue spark Electric Style 3D Editable text effect Template Design
flame smoke and sparks on an electrical cable, fire hazard concept, soft focus close up
Electrical technician tests wiring, polarity, grounding, voltages and performs electrical maintenance using hand tools that involve clamp meter, screwdriver, and cutter. The foreman's routine tasks.

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