either one could. it depends witch one you unscrew first.
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.
By adding more light bulbs
1. End of life on the bulbs 2. Incorrect wattage of the bulb used 3. Fuse problem 4. Wire problem
if you have 2 bulbs and one burns out, the other wont shine, if you remove 1 bulb, you are breaking the circuit, and the current cant flow to the second bulb, so no it wouldn't shine.
Series circuit gives higher resistance compared to parallel circuit.
lower wattage bulb
No, the highest wattage bulb will have the lowest resistance.
They can be connected to either supply. A bulb in series that fails, will cause all the other bulbs to go out. A bulb in parallel that fails, will have no adverse effect on the other bulbs in that circuit
The circuit voltage or the resistance of the individual bulb is needed to answer this question. Divide the total power (400 W) by the supply voltage.
A Bulb can be connected in a series in such a way that the energy source which is applied want to flow equally across the bulbs connected in series. A Bulb has to knobes or holds in which we supply the power. Assume one knob as a positive voltage absorbing source and other has a negative voltage absorbing source. When we connected in such a way that we can apply the voltage continuously in which the bulb will blow easily. When two or more bulbs are connected in series like end of the knob of one bulb i.e., negative to the next positive of the next bulb in series and negative of second bulb to the positive of the third bulb. Then the voltage splits equally across the bulbs connected.
If you put two incandescent bulbs of the same wattage in series, they will both light with the same intensity. If one is lower wattage than the other, the lower wattage bulb will light brighter than the oter one. If you put two 115 volt bulbs of the same wattage in series across 230 volts, both will light equally, but if you use dissimilar wattages, the smaller one will burn out.
Adding additional lamps has no effect on the supply voltage supplied to you home. If the lamps are connected in series, then the sum of voltage-drops appearing across each lamp will equal the supply voltage. If the lamps are connected in parallel, then the voltage across each lamp will equal the supply voltage.
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.
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.
Argon or dry nitrogen are common fill gasses in high wattage bulbs. But low wattage bulbs are just vacuum with no fill.
Your description is very strange. I can't imagine an application where two bulbs are in series and two in parallel. However let's assume that each bulb has one white wire and one black wire. Take the two parallel bulbs and connect then across the supply by tying all blacks and all whites together with black and white from supply. Then for the two series bulbs connect black from one to white from other. Then take the remaining black and white wires and connect to the black and white wires for parallel bulbs respectively.
all the bulbs must in parallel because all must get the same voltage.......in parallel voltage is constant.if they are connected in series they will not get same voltage