a 5.0-cm-diameter coil has 20 turns and a resistance of 0.50ω. a magnetic field perpendicular to the coil is b=0.020t 0.010t2, where b is in tesla and t is in seconds.

hèllo, sorry i really need some more points so if you need this qustion answered than retype it

the ima (higher than 1m) will be greater than the ima with the height of 1m.

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.