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If the applied voltage of a certain transformer is increased by 50% and the frequency is reduced to 50% (assuming that the magnetic circuit remains unsaturated). the maximum core flux density will | |
A. | change to three times the original value. [Correct Answer] |
B. | change to 1.5 times the original value. [Wrong Answer] |
C. | change to 0.5 times the original value [Wrong Answer] |
D. | remain the same as the original value. [Wrong Answer] |