DC Generators In a dc generator, armature reaction _____ pole tip. Weaknes the flux at the leading None of the listed here Weaknes the flux at the trailing Strengthns the flux at the leading Weaknes the flux at the leading None of the listed here Weaknes the flux at the trailing Strengthns the flux at the leading ANSWER DOWNLOAD EXAMIANS APP
DC Generators The critical resistance of the D.C. generator is the resistance of Brushes Armature Field Load Brushes Armature Field Load ANSWER DOWNLOAD EXAMIANS APP
DC Generators A 4-pole , lap wound dc shunt generator has an armature winding consisting of 220 turns each of 0.004 Ω. The armature resistance is 0.025 Ω 0.055 Ω 0.5 Ω 1 Ω 0.025 Ω 0.055 Ω 0.5 Ω 1 Ω ANSWER DOWNLOAD EXAMIANS APP
DC Generators In D.C. generators the polarity of the interpoles Is the same as that of the main pole ahead Is neutral as these poles do not play part in generating e.m.f. Is the same as that of the immediately preceding pole Is opposite to that of the main pole ahead Is the same as that of the main pole ahead Is neutral as these poles do not play part in generating e.m.f. Is the same as that of the immediately preceding pole Is opposite to that of the main pole ahead ANSWER DOWNLOAD EXAMIANS APP
DC Generators The open circuit voltage of a compound generator is 250 V. At full load the terminal voltage None of these Will always be 250 V May be greater or less than 250 V Will be less than 250 V None of these Will always be 250 V May be greater or less than 250 V Will be less than 250 V ANSWER DOWNLOAD EXAMIANS APP
DC Generators Carbon brushes are used in a dc machine because _______ None of the listed here Contact resistance is decreased Carbon is cheap Carbon lubricates and polishes the commutator None of the listed here Contact resistance is decreased Carbon is cheap Carbon lubricates and polishes the commutator ANSWER DOWNLOAD EXAMIANS APP
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