unshielded copper wire is coiled in a spiral to form a disc

alternating art cable cabling ceiling circle coil coiled components conductor connection cooktop copper current design disc dome electric electrical electricity electrification electro electromagnetic electronic engineering equipment experiment form glass induction industry insulation iron laboratorium lamp large light lighting line magnet magnetic metal object orange organ patina power prototype red science solenoid spiral symmetry technology twisted unshielded voltage wheel window wire wired wires wiring