21 ) Which meter is used to measure revolution per minute of a motor?
મોટરનો રિવોલ્યુસન પર મીટર માપવા માટે કયા મીટરનો ઉપયોગ થાય છે?
A) Tachometer |ટેકોમીટર
B) Energy meter 24-10-1123
O ) C )
C) Ampere hour meter 2443 2492 Hlzz
O
D) Centre zero ammeter 12-2 ORI 2+
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Explanation:
don't know ...............
Answered by
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Answer:
Tachometer
Explanation:
tachometer is used to measure revolution per minute of a motor
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