do bulbs arranged in series produce brighter light than that of bulbs arranged in parallel?

Answer 1

Putting it simply, bulbs (luminares) in parallel will be brigher then bulbs in series for the same voltage supply.

Answer 2

Brightness of incandescent lamp depends on energy dissipated by the lamp.
W= V**2/R where V = voltage and R= resistance of bulb
When you put two or more bulbs in series then V applied to one bulb becomes less so is the W.
so when for example two identical bulb put in series, V in one bulb becomes half hence the W becomes 1/4 compared when you put alone. So together 2 bulbs in series will deliver half the brightness of single bulb.
In parallel system the V remains the same as single bulb, so each bulb will deliver the same brightness as single bulb.
So two bulb in parallel will deliver twice the brightness of single bulb.

Answer 3

If the source of the electrical energy is the same in both cases, two identical light bulbs arranged in parallel will be brighter than two identical light bulbs arranged in series. Let us assume that the source of the electrical energy comes from a new 9V battery. When the two identical light bulbs, each with resistance, R, are connected in series, the current from the battery only has a single path to flow in the circuit. Hence the same current is resisted by all the resistance along the path, which means the total resistance to current in the circuit is the sum of the individual resistances along the path. Most importantly, the voltage of the 9V battery is divided between the two identical bulbs, which means that the potential difference across each bulb is 4.5V. Whereas, for the parallel connection, both light bulbs are connected to the same two points of the battery, which is the positive and negative polarity. Hence for the parallel connection, the potential difference across each bulb is 9V. The brightness of the light bulbs depends on the rate of energy dissipated by the light bulbs, which is given by P = V2 / R, where P is power dissipated, V is the potential difference across each light bulb and R is the resistance of each light bulb. From this formula, you can see that the power dissipated by the bulbs connected in parallel is greater than the bulbs connected in series, due to the greater potential difference across each bulb for the former. Hence, the light bulbs connected in parallel are expected to be brighter.

If you compare two identical light bulbs connected in parallel with only a single light bulb, you will see that the potential difference across all the bulbs will be the same, which is 9V each. Hence, using the formula for power dissipated, the brightness of each of the bulbs in both connections should be the same. The difference is, for the parallel connection, since there are two light bulbs, the battery will drained in a much shorter time than when using only one bulb. But, if you are referring to the total luminosity of the two light bulbs compared to only a single light bulb, the former is definitely brighter as it provides twice the total brightness. However, there are many assumptions made in these results. We have assumed that all the light bulbs used have the same resistance or at least, only a very small difference. We have also assumed that the wires used for the connections and the internal resistance of the battery is zero or very small compared to the resistance of the light bulbs such that they can be neglected. Generally, all the assumptions made are quite acceptable. But, when a weak battery is used, its internal resistance, which is due to the materials used and the chemicals within the battery, increased significantly and cannot be neglected anymore. In this case, you may not see the same brightness for a single light bulb compared to two identical light bulbs in parallel.

Answer 4

The brightness of an incandescent bulb depends only on the amount of current flowing through it. Two identical 6 volt bulbs produce the same brightness whether they are connected in parallel to a 6v supply or in series to a 12v supply.

Answer 5

Connected to one source, In series the bulbs would get same current whereas in parallel the current (I) would be divided by number of bulbs.
Electic power spend in the bulb is I*I*R (R is the resistance) so in case of bulbs connected in series, they would be brighter and your battery will worn out faster

Answer 6

Billrus and Mr. Roach the two responded the question as properly as conceivable with what became given. i'm particular they assumed the bulbs to be related to an appropriate source Voltage which has no inner resistance. it extremely is obviously a logical assumption that i think of the asker meant for us to think of. despite the fact that the appropriate answer relies upon on the form of bulbs and their person resistance and the indoors resistance of the source Voltage which became no longer given. for occasion evaluate a case the place each and all of the mild bulbs have an equivalent yet incredibly severe working resistance. Now assume that the cost of the indoors resistance of the source Voltage became such that it precisely matched the full sequence resistance of each and every of the bulbs. for this reason with the bulbs related in sequence and the source impedance matched with the load impedance maximum ability could be transferred from the Voltage source to the bulbs. this suggests that the flexibility in keeping with bulb is at it`s maximum for this actual source Voltage. Now if the sequence circuit became disconnected and all the bulbs have been now related in parallel in the time of that comparable Voltage source with a similar severe inner resistance then with the at present severe entire modern-day drain the Voltage drop around the indoors resistance of the source Voltage could be so severe that the relax Voltage in the time of each and each bulb interior the parallel circuit could be even below it became in the time of each and each bulb whilst the bulbs have been related in sequence. for this reason each and each bulb could be brighter whilst each and all of the bulbs are related in sequence than whilst all the bulbs are related in parallel. A tad a strategies fetched in keeping with possibility yet not at all the less authentic.