76. Regarding the operating principle of a DC generator, which of the following statements is incorrect?
(A) A DC generator converts kinetic energy into electrical energy.
(B) DC motors and DC generators can be used interchangeably.
(C) A DC generator requires an external power source to operate.
(D) The rotation of the motor's rotor generates current.

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統計： A(8), B(11), C(19), D(5), E(0) #3278848

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