As the points begin to open, point spacing is initially such that the voltage across the primary coil would arc across the points.
12.
In real life, do they match the primary coil turns with designed input voltage ( so 220v means 220 primary coil turns )?
13.
In real life, do they match the primary coil turns with designed input voltage ( so 220v means 220 primary coil turns )?
14.
One design common in early days, called a " loose coupler ", consisted of a smaller secondary coil inside a larger primary coil.
15.
In a transformer, a changing electric current in a primary coil creates a changing magnetic field that induces a current in a secondary coil.
16.
The secondary coil inside the bulb would receive this alternating magnetism from the primary coil and provide an electrical current that electrified the inside filament.
17.
The RF alternating current from the antenna through the primary coil created a magnetic field which induced a current in the secondary coil which fed the detector.
18.
The primary coil is conected to an A-c voltage circuit source V1 ( t ) and the secondary coil is connected to a load resister R1.
19.
Both primary and secondary were tuned circuits; the primary coil resonated with the capacitance of the antenna, while the secondary coil resonated with the capacitor across it.
20.
The primary coils are wound from enamel coated copper or aluminum wire and the high current, low voltage secondaries are wound using a thick ribbon of aluminum or copper.
