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Why Doesn't a lamp light up if the filament inside is broken?
If the filament inside a lamp is broken, it cannot conduct electricity properly, which is essential for generating light. The broken filament creates a gap in the circuit, preventing the flow of electricity needed to produce light. As a result, the lamp will not light up.
What happens to the energy when you turn on an electric lamp?
When you turn on an electric lamp, electrical energy is converted into light energy and heat energy. The electrical energy flows through the lamp's filament, causing it to heat up and emit light. Some energy is also lost as heat due to resistance in the lamp's circuit.
What does a lamp in a circuit do?
A lamp in a circuit converts electrical energy into light energy when current flows through it. This conversion is possible due to the properties of the lamp's filament or gas, which heats up and emits light when electricity passes through it.
What would be the voltmeter reading if the lamp across which it is placed has a broken filament?
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.
What happens to energy from electricity when you turn on an electric lamp?
When you turn on an electric lamp, the electricity flows through the lamp's circuit, causing the bulb's filament to heat up and emit light. The electrical energy is converted into light energy and heat energy.
Why Doesn't a lamp light up if the filament inside is broken?
If the filament inside a lamp is broken, it cannot conduct electricity properly, which is essential for generating light. The broken filament creates a gap in the circuit, preventing the flow of electricity needed to produce light. As a result, the lamp will not light up.
What happens to the energy when you turn on an electric lamp?
When you turn on an electric lamp, electrical energy is converted into light energy and heat energy. The electrical energy flows through the lamp's filament, causing it to heat up and emit light. Some energy is also lost as heat due to resistance in the lamp's circuit.
What does a lamp in a circuit do?
A lamp in a circuit converts electrical energy into light energy when current flows through it. This conversion is possible due to the properties of the lamp's filament or gas, which heats up and emits light when electricity passes through it.
What would be the voltmeter reading if the lamp across which it is placed has a broken filament?
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.
What happens to energy from electricity when you turn on an electric lamp?
When you turn on an electric lamp, the electricity flows through the lamp's circuit, causing the bulb's filament to heat up and emit light. The electrical energy is converted into light energy and heat energy.
Does a lamp with a thick filament draw more current or less current than a lamp with a thin filament?
A lamp with a thick filament will draw more current. What restricts the current flow in the filament is the resistance of the filament which increases as the temperature of the filament increases. A thin filament requires less energy to get heated up that a thick one so less current to achieve threshold resistance. Also a thick filament provides a broader path for current so there is less resistance per increase in degree centigrade. For these two (closely related but distinct) reasons it will require more current for the filament to get heated up to threshold resistance.
What part of the lamp converts electricity to light?
The light bulb or LED component of the lamp converts electricity into light through the process of electricity flowing through a filament or semiconductor material, which then emits photons, creating light.
What energy transformations occur in a lamp?
Electrical energy is transformed into electromagnetic energy.
How do you Use filament in a sentence?
(Filament is a thread or thin wire.)Is the lamp unplugged or is the filament broken in the bulb?A silkworm's cocoon is made from a thin filament which can be twisted into thread.
Why does a 25 watt bulb glow brighter than 60 watt in a series circuit?
Because the filament of a 25-W lamp has a higher resistance than that of a 60-W lamp and, therefore, will experience a greater voltage drop -the lamp with the voltage drop closer to its rated voltage (in this case, the 25-W lamp) will be the brighter.
Two lamps one with thick filament and one with a thin filament are connected in parallel to a battery . What explains why the lamp with the thicker filament burns more brightly?
The lamp with the thicker filament has a lower resistance compared to the one with the thin filament. According to Ohm's law, lower resistance allows more current to flow through the thicker filament when connected in parallel to the same voltage source. This increased current results in a higher power output (P = I²R), causing the lamp with the thicker filament to burn more brightly.
Why is the filament inside an electric lamp made very fine?
The filament is fine so that its electrical resistance can be quite high. It is also long, for the same reason. Usually it is coiled up to fit the length in the lamp. The heating effect of electric current is proportional to the current squared, time the resistance (I*I*R). Most of the effect is due to the current. The current through the filament must be limited to stop it melting. Adding resistance will do that. Taking resistance away increases heating. So, a low energy lamp has a very thin filament and a high energy lamp will have a thicker filament.
