Question

Ans. the above mcq correctly ignore my answers...if possible provide explanation too but not necessary jst ans. it correctly..​

Answer 1

Answer:

42-(2) because as key locked then resistance increases suddenly so current will decreases (I=v/r)

43-(4) only 1 amp. can passe through ammeter (capablity),left 9 amp pass through shunt

current is inversely proportional to resistance

for 9 times more current =1/9 times of resistance

so resistance of dd shunt is 0.81/9=0.09

44- (3) total resistance= 1.5

so ,current=6.0/1.5=4amp

45-(3) capablity of voltmeter= 1v(1ohm)

resistance directly proportional to voltage

do,for 99 more voltage=99 more ohms..

Answer 2

Answer:

yhh the above person to give ans. is correct..