formula for determining potential difference
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Electrically, V2-V1 (volts) where V2 and V1 are the electrical potentials at different points. Mechanically, mg(y2-y1) where m is mass, g is acceleration due to gravity, y =vertical position.
The whole circuit fails - because the action of the bulb blowing cuts the circuit.
The difference between a series and parallel circuit is that a series circuit is connected in such a way that the same current intensity flows through the elements while a parallel circuit is connected in such a way that the same potential appears across their terminals.
Current = (Voltage across the circuit) divided by (Total resistance of the circuit). The current is the same at every point in the series circuit.
series circuit can only move on one patha parallel circuit has two more paths for the electric carve to follow
The voltage divider circuit is a network of two or more components in series, often resistors, between a potential difference. The voltage between the components will be somewhere between the potential difference across the whole network and so divides the total voltage into one or more intermediate voltages.