Morning Guys & Girls
Im alittle confused with a question on 301 download & i had a question on my 301 exam similar i could not remember the formula i have it now the question being An electric motor has a power output of 1500w. The input current is 4a & the applied voltage is 400v. The efficiency of the machine will be
A.50% B.75% C.87.5% D.93.75% & i have answers too given me d
Trying to do the calc E= Output divide by input x 100 which i have done but i
get 37500 doing 1500 divide 4 x 100 what am i doing wrong please
Im alittle confused with a question on 301 download & i had a question on my 301 exam similar i could not remember the formula i have it now the question being An electric motor has a power output of 1500w. The input current is 4a & the applied voltage is 400v. The efficiency of the machine will be
A.50% B.75% C.87.5% D.93.75% & i have answers too given me d
Trying to do the calc E= Output divide by input x 100 which i have done but i
get 37500 doing 1500 divide 4 x 100 what am i doing wrong please