It is unclear what type of circuit you are referring to, so I'll give both answers.
When more bulbs are added to a parallel circuit, the total current in the circuit increases because each bulb provides an additional path for current to flow. This is because in a parallel circuit, the current is divided amongst the branches, so adding more branches (bulbs) will increase the total current.
The total current provided by the battery increases as more bulbs are added to a parallel circuit. This is because each branch in a parallel circuit receives the full voltage of the battery, leading to more current flowing through each branch as more loads (bulbs) are added.
As more light bulbs are added in a series circuit, the effective resistance of the circuit increases. That causes the current leaving the source to decrease.
A: If put in series current will decrease if put in parallel current will increase assuming the input voltage remains the same
If you add more cells in series with the bulbs, the current will increase as the voltage across the bulbs increases. If you add more cells in parallel with the bulbs, the current will stay the same because the voltage of the cells does not increase when they are added in parallel.
By adding more light bulbs
nothing
Adding more batteries to a circuit with light bulbs will increase the brightness of the bulbs. This is because the additional batteries will provide more voltage, which allows for a higher current to flow through the circuit. As a result, the bulbs will emit more light due to the increased energy supplied.
current in series always stays the same
Voltage remains constant; current increases.
Total power consumption increases with each bulb. The remaining bulbs continue to operate unchanged.
Nothing.