It is unclear what type of circuit you are referring to, so I'll give both answers.
The total current increases in this case.
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.
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
By adding more light bulbs
nothing
The power of light bulbs is measured in
Voltage remains constant; current increases.
current in series always stays the same
The total voltage should not change in this case.
Total power consumption increases with each bulb. The remaining bulbs continue to operate unchanged.
Nothing.