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Two light bulbs of resistance R1 and R2 R2R1 are connected in series Which is brighter?
The brightness of a light bulb is related to its power. In all electrical circuits, power is equal to Voltage*Current. Since the two bulbs are connected in series, they must have equal current. The voltage across any given element in a series circuit is proportional to its resistance, so whichever bulb has the higher resistance has a higher voltage and thus higher power and is brighter.
What else can I help you with?
Is it sensible for the TV to be connected in series with the light bulbs?
Connecting light bulb is equivalent to connecting a resistance. If you have connected light bulb, there will be some voltage drop across it and your TV may not get sufficient voltage. However if resistance is not big enough, than it wont have any effect.
Light bulbs in a series circuit have the same brightness?
If they have the same resistance they will. Kirchhoff's' Law.
Will adding light bulbs to a parallel circuit causes all of the light bukbs to shine less brightly?
No. In a parallel circuit, the resistance gets cut in half, so logically the bulbs would do the opposite and get brighter.
What would happen if one of a set of light bulbs burn out in a parallel circuit?
It depends on the circuit. If it is a constant-current circuit, any light bulbs connected in parallel with it will become brighter. If it is a constant-voltage circuit like a typical household circuit, nothing will happen. Any connected in series with it will go out.
What happens if three 60 W light bulbs are mistakenly wired in series and connected to a 120 V power supply Assume the light bulbs are rated for single connection to 120 V?
Since the bulbs are in series, each one will have 40 volts across it instead of the 120 volts it was designed for. The bulbs will glow very dimly or not at all.
Is it true that when a round bulb and a long are connected in a parallel circuit the long bulb is brighter than the round bulb?
In a parallel circuit, the brightness of the bulbs connected depends on their resistance and current flow, not their physical shape or size. The bulbs will have the same voltage across them, so if the long bulb has a lower resistance, it could be brighter but this depends on the specific characteristics of the bulbs.
For bulbs connected in series the high watt bulb has high resistance?
No, the highest wattage bulb will have the lowest resistance.
What is the effect on total resistance of adding this third bulb?
If a fourth bulb were added in a similar way to the three existing bulbs, the resistance in the circuit would go up if the bulbs were series connected, and it would go down if the bulbs were parallel connected.
If you have two 5 watt bulbs connected in series and then in parallel which circuit arrangement will give you brighter bulbs explain your answer?
Brighter in parallel. In series the voltage is divided between the two bulbs, thus the current will only be half so that the power of each bulb will only be one quarter (of 5 watts) in the series set-up.
Why are two bulbs in a series dim?
Two bulbs in a series are dim because the resistance in the circuit increases when the bulbs are connected in series, dividing the voltage between them. This results in less power being supplied to each bulb, making them appear dimmer compared to when they are connected in parallel.
Connected in series or parallel will each bulb glow brighter?
In parallel, each bulb will have full voltage applied across them. However, in series, the voltage across each bulb won't be the same as supply voltage. Thereby, bulbs connected in parallel will glow brighter.
In a series circuit with multiple light bulbs attached to a battery why are you seeing the light bulbs closest to the battery are brighter than those bulbs further from the battery?
The light bulbs closest to the battery appear brighter because they have less resistance in the circuit compared to the bulbs further away. As current flows through the circuit, it encounters resistance from each component, which results in a potential drop. The bulbs further away experience a larger voltage drop due to the increased resistance, leading to dimmer illumination.
Does the same current pass through each bulb?
If the bulbs are connected in series, the same current passes through each bulb. However, if the bulbs are connected in parallel, the current will split between the bulbs with the lower resistance receiving more current.
Out of the two bulbs in the house one glows brighter than the other which one of the two has a larger resistance?
The bulb that glows brighter has a smaller resistance. This is because a larger current flows through the bulb with smaller resistance, resulting in it glowing brighter.
Will the lightbulb be brighter in series circuit or brighter in a parallel circuit?
This question is the wrong way round. Assuming you the light bulbs are identical, they are brighter when connected to the power source in parallel than in series. This is because each bulb uses the entire potential difference of the power source, whereas in series, the bulbs act as potential dividers, reducing the voltage across the others and therefore the current passing through all of them.
If you have 2 5-watt bulbs connected in series and then in parallel which circuit arrangement will give you brighter bulbs?
It depends on the voltage rating of each lamp, and the value of the supply voltage. It's important to understand that a lamp will only operate at its rated power (therefore at its full brightness) when subject to its rated voltage.So, let's assume each lamp is rated at, say, 24 V.If connected in parallel across a 24-V supply, then they will both operate of full brightness.If connected in series across the same 24-V supply, then each lamp will be subject to half its rated voltage, and will be very dim.On the other hand, if connected in series across a 48-V supply, then they will each be subject to 24 V, and will both operate at full brightness.
Why is it that in series connection the light of the bulb is different to one another?
In a series connection, the same current flows through each component. When bulbs are connected in series, the total voltage is divided across each bulb based on its resistance. As a result, bulbs with different resistances will have different brightness levels.
