a separately excited d. c generator has armature
resistance of 0.1ohms and brush drop av. when
running at 1000 rimp, it delivers a current of
| 100a at ason to a load of constant resistance
if the generator speed drop to 700 r. me find
the current delivered to the load

96.77 amp

explanation:

rl = 250/100 = 2.5 ohms.

egl = 250 + (100 × 0.1) + 2 = 262 v.

at 700 r.p.m., eg2 = 262 × 700/1000 = 183.4 v.

if ia is the new current, then eg2 - 2 - (ia × 0.1) = 2.5 ia

which means this will give ia = 96.77 amp.

it takes about 30 days for it to break down

it is very well related to a lot of things but with my limited knowledge i can confidently say that the answer is space.