A variable reluctance type tachometer has 150 teeth on rotor ___

A variable reluctance type tachometer has 150 teeth on rotor.

The counter records 13500 pulse/sec.

The rotational speed is

A. 4800 RPM
B. 5400 RPM
C. 6000 RPM
D. 7200 RPM

Show Answer

Answer: B

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