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What would be the voltmeter reading if the lamp across which it is placed has a broken filament?
AdnanSalehin
A voltmeter connected across the broken (open) filament of a light bulb reads the
full voltage of the power supply whether the bulb is in a series or parallel circuit.
-- In a series circuit with other components in series with the bulb, this reading tells you
that at least one of the components is open, possibly the filament.
-- In a parallel circuit with other components in parallel with the bulb, or with
the bulb connected directly to the power supply, this reading tells you nothing ...
the voltmeter reads the full power supply voltage whether the bulb is open or good.
The voltmeter isn't a very helpful measurement to identify an open filament.
An ohmmeter, with the power to the circuit turned off, is much more helpful.
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∙ 10y ago
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Why does the light bulb not work when the filament is broken?
A light bulb works by passing an electric current through the filament, which is usually made from a high resistance substance such as tungsten. When the current flows through, the filament glows which produces the light. When it burns out, no electricity passes and no glowing occurs. Source: i just know
What will happen if the tiny wire in a light bulb breaks?
The filament , once broken , will no longer generate any light because the connection is now broken and no longer conducting any electricity .
Can electricity still pass through a bulb which has fused?
If the bulb lights up then electricity is passing through the bulb. If the bulb doesn't light up then electricity is not passing through.
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Will the bulb light if the filament is broken Why?
No, the broken filament breaks the connection which electricity needs to complete the circuit.
Can current flow through a bulb with a broken filament?
No, the broken filament breaks the connection which electricity needs to complete the circuit.
How do you Use filament in a sentence?
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Fused bulb
If the filament of the bulb is broken would the circuit is complete?
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Why does a fused bulb not glow?
A fused bulb does not glow because the filament of a fused bulb is broken. Since current can't flow through the filament, it can't get hot enough to glow.
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Replace the fuse only when the filament inside the fuse is broken, In other words when it "pops".
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Maybe, but not sure info would be useful. You can use ohmmeter to check that a tube's filament is intact. Broken/burned-out filament is most likely reason for dead tube.
Why does the light bulb not work when the filament is broken?
A light bulb works by passing an electric current through the filament, which is usually made from a high resistance substance such as tungsten. When the current flows through, the filament glows which produces the light. When it burns out, no electricity passes and no glowing occurs. Source: i just know
What will happen if the tiny wire in a light bulb breaks?
The filament , once broken , will no longer generate any light because the connection is now broken and no longer conducting any electricity .
Can electricity still pass through a bulb which has fused?
If the bulb lights up then electricity is passing through the bulb. If the bulb doesn't light up then electricity is not passing through.
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