Answer:d
Explanation:
Suppose V is the voltage of battery and R is the resistance of bulb
so Power drop for initial stage

When another identical bulb of same resistance is applied in parallel so voltage Drop across both the resistor will be same i.e. V
so Power consumed 
so there is no change in power and hence no dip in brightness
Answer:
he electron moves in the direction of a greater electric potential
Explanation:
Electric potential and electric field are related
V = -∫ E .ds
t
he electric force is related to the electric field
F = q E
F = q (-dV / ds)
since the electron has charge a = 1.6 1019 C
F = e dv / ds
therefore the electron moves in the direction of a greater electric potential
It's a corrupted and un-proofread description for "scientist".