Two light bulbs are wired in series and one bulb burns out (opens.) technician a says that the other bulb will still work. technician b says that the current will increase in the circuit because one electrical load (resistance) is no longer operating. which technician is correct?

Neither technician

Explanation:

Neither technician is correct.

two bulbs are connected in series one bulb burn out  

If one bulb in the series burns out then the circuit will break.

In a series circuit same current passes each resistor.

so, both the technician is incorrect bulb B will not work and current will not increase in the other bulb.

Explanation:

(D)