the armature of a 230 V shunt motor has a resistance of 0.18 ohms if the armature current is not to exit 76 a calculate (a) the resistance that must be inserted in series with the armature at the instant of starting​ (b) the value to Wich to the resistance can be reduced when the armature accelerate until Ec is 168 volt (c) the armature current at the instant of starting if no resistance is inserted in the armature circuit. (assume a 2 volt at the brushes)

i think it’s a. this is because if they measured the mass of something with a mass of 150g, then their final answer would have to be approximately 150g. though all of their answers are almost 150, rosa and tran have the closest answers (or the exact answer) to the accurate one.

there is no correct list among the choices you've provided.

the list might look something like this:

-- baby human

-- piccolo

-- flute

-- soprano singer

-- trumpet

-- tenor singer

-- trombone

-- baritone singer

-- baritone horn

-- bass singer

-- tuba

since i had to make up the list myself, i made it easy on myself, and i didn't try to shuffle the string instruments and woodwinds into it too.

amplitude

hope this