If back emf of d.c. motor is doubled while its speed is also doubled, then torque developed by the machine will

If back emf of d.c. motor is doubled while its speed is also doubled, then torque developed by the machine will

Q. If back emf of d.c. motor is doubled while its speed is also doubled, then torque developed by the machine will

A.            Remain same

B.            Become four times

C.            Double

D.            Becomes half

Answer: Remain same

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