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Electric Current (Resistance (When electric current flows in the …
Electric Current
Resistance
When electric current flows in the filament, it becomes hot enough to emit light
The filament is made of tungsten metal, which has a much higher melting point than most other metals
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Flow of Charge
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In solids, the flowing charges are electrons
In liquids, the flowing charges are ions, which can be positively or negatively charged
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Electric current flows in the circuit as long as none of the wires, including the glowing filament wire in the lightbulb, is disconnected or broken
How Current Flows
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As an electron moves, it collides with other electric charges in the wire and is deflected in a different direction.
After each collision, the electron again starts moving toward the positive terminal.
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Insulators
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Ex:Glass,Rubber,Plastic,Cotton,Paper etc.
Conductors
Ex:Silver,Copper,Gold,Iron etc.
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Electric charges will flow continuously only
through a closed conducting loop, called a
circuit
The voltage in a circuit is a measure of the
electrical potential energy of the electrons in
the circuit
A battery supplies energy to an electric circuit
by increasing the electric potential energy of
electrons in the circui
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