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In Hopkinson's efficiency test for dc machines | |
A. | both the machines are mechanically coupled. [Wrong Answer] |
B. | both the machines are operated at full load. [Wrong Answer] |
C. | one machine acts as a generator and another as a motor. [Wrong Answer] |
D. | the armature current of the machine operating as a motor is more than that of the machine operating as a generator. [Wrong Answer] |
E. | the field current of the machine operating as a generator is more than that of the machine operating as a motor. [Wrong Answer] |
F. | allof the above. [Correct Answer] |