Electrical Machines The field divertor resistance for a DC series motor is of order of 100 Ω 10 Ω 0.1 Ω 50 Ω 100 Ω 10 Ω 0.1 Ω 50 Ω ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two dc machines A and B, using the same conductor material, have armature circuit resistances of 0.4 Ω and 1.2 Ω respectively. Of the two machines, B is bigger than A for the same current rating both are of the same size for the same current rating A is bigger than B for the same current rating A is bigger than B for the same voltage rating B is bigger than A for the same current rating both are of the same size for the same current rating A is bigger than B for the same current rating A is bigger than B for the same voltage rating ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following bearings and their uses are correct neither 1 nor 2 both A and B ball bearings → small machines roller bearings → large machines neither 1 nor 2 both A and B ball bearings → small machines roller bearings → large machines ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines No load primary current in a transformer leads the applied voltage somewhat less than 90Ã& leads the applied voltage by exactly 90Â& lags behind applied voltage by exactly 90Â&am lags behind applied voltage somewhat less than 90à leads the applied voltage somewhat less than 90Ã& leads the applied voltage by exactly 90Â& lags behind applied voltage by exactly 90Â&am lags behind applied voltage somewhat less than 90à ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a DC machine having P no of pair of pole pairs, Z no of conductors having length L of resistivity ρ and cross section S are arranged. what is the armature resistance? PZL/4S PZL/ 4Sa PZL/4Sa² PZL/4Sp² PZL/4S PZL/ 4Sa PZL/4Sa² PZL/4Sp² ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two mechanically coupled alternators deliver power at 50 Hz and 60 Hz respectively. Highest speed of alternator is 3600 rpm. 500 rpm. 600 rpm. 3000 rpm. 3600 rpm. 500 rpm. 600 rpm. 3000 rpm. ANSWER DOWNLOAD EXAMIANS APP
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