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The glow of the bulb is due to heating of the filament to the incandescent level. Joule's heating effect gives the formula H = I2 R t.
Hence more the current then more the heat and so more brightness. Thus large current makes the bulb brighter no doubt. At the same time if current exceeds the nominal level then filament would get melted and get fused.
Wiki User
∙ 12y ago
Wiki User
∙ 11y agoThe brightness of a bulb is related to the voltage of the circuit, and to the diameter of the conductor which implies on more or less resistance. The higher is the resistance will make the bulb to bright less. The voltage is the power that push the electrons forwards, and the higher is the voltage will make the bulb brights more. However, the voltage is subordinated to the resistance of the circuit, regarding to the level of brightness of the bulb.
There is a relationship among Voltage, current and resistance which is called "The Ohm Law". It comprises a single formula that makes easy to calculate everything in a single circuit.
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Why in houses if one bulb is fused the rest of the bulbs continue to glow?
If a circuit is wired in parallel, all the bulbs have their own independent access to electricity, so if one bulb goes out, the others are not affected. If the circuit is wired in series, then one bulb going out will block the current to all the other bulbs as well.
How is adding a ammeter to a circuit different from adding a light bulb?
When you add a light bulb, you are adding a load, which performs a function - in this case, it converts electrical energy to light and heat energy. When you add an ammeter, most of the time you intend to measure the current in the circuit, which is the function of the ammeter. Thus the two electrical components differ in their function and does different things when added to a circuit.
What is a seris and a parrel circut?
in a series circuit current flows through each resistor or light bulb and if one item burns out the complete circuit goes dead such were the old fashioned xmas tree lights. They were wire in series and if one light burned out you had to test each light bulb til you found the one burned out to get the whole string to work again. In a parallel circuit each resistor, motor, light bulb has its own ground so if you lost one light in a circuit the rest of them continue to burn.
If you add an extra battery to a circuit containing a bulb how will this affect the bulb?
The bulb becomes brighter unless it is too much till it shot-circuits.
What happens when you hook up the bulbs in parallel?
If you have a 3 bulbs in parallel lets say. If one of those burns out it just means that there is now an open circuit where the burned out bulb used to be. The two that remain aren't aware that anything has changed.
The current is 0.4 A and the bulb in the circuit is bright. What will happen to the brightness of the bulb if you put another bulb in series in the circuit?
ANSWER: The brightness of both bulbs will decrease. If the bulbs are identical the current will decrease to 0.2 Amps. This is a simple series resistive circuit, the more bulbs you add in series both the amperage and bulb brightness will continue to go down.
How do you know when electric current is flowing in a light bulb circuit?
You know if current is flowing in a bulb circuit because, if there is enough power (voltage times current), the bulb will illuminate. If there is current, but not enough power to illuminate the bulb, you will need to measure the current with an ammeter to see if there is any current.
In a series circuit if 1 bulb goes out the circuit is considered open or closed?
If one bulb in a series circuit goes out, then current can't flow anywherein the circuit. A circuit in which current can't flow is an open circuit.
A W bulb and a W bulb are connected in series in a circuit Which bulb has the greater current flowing in it?
A series circuit is where there is only one path for the current. As a result, and as a direct consequence of Kirchoff's current law, the current at every point in a series circuit is the same. The two bulbs have the same current flowing through them.
What is the switch and the bulb in electricity?
A switch is used of stop the current flow in a circuit and the bulb can be classed as the load in a circuit.
How do we decrease the brightness of a bulb?
If the bulb is of the incandescent variety, then reducing the current in the circuit will do this.
Explain which circuit you would use to light a bulb as bright as possible...a series or parallel circuit?
Think of it this way: If you want a lot of water to flow into one place, would you divide the river? However, it's irrelevant in this case, because the light bulb can only take a certain amount of current and voltage before it burns out. You can have amazingly bright for a millisecond or fairly bright for a long time. Your choice.
If two light-bulbs are connected in a series circuit and one of the light-bulb's current flowing is 0.5 A what is the current flowing in the other light-bulb?
Current in a series circuit is the same throughout the circuit. Voltages are additive. Voltage in a parallel circuit is the same throughout the circuit. Currents are additive.
What reason for bulb blowing in an electrical circuit?
Too much current for the rating of the bulb.
What happens when one light bulb goes out in a series?
The failed bulb breaks the circuit so no current can flow - so the other bulb goes out (but is OK).
What happens when a battery light the light bulb?
When the switch is turned it completes an electrical circuit. The circuit amperage flows through a high resistance filament in the bulb and it starts to glow. The bright glow from the filament and the reflector behind the bulb is what creates the flashlights beam.
Why is there 0 current when a light bulb burns out?
Incomplete circuit
