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Will an electric motor rated at twelve volts run faster or slower off of nine volts?
Wiki User
∙ 14y ago
I presume we are talking DC voltages here. The motor will run slower on 9 VDC that on 12 VDC.
Wiki User
∙ 14y ago
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The electric motor changes electric energy into mechanical energy.
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How can you determine if an electric motor is 50HZ or 60HZ if there is no name plate?
One way would be to hook it up to a supply (by itself, with no load) and measure the speed with a contact tachometer. If your supply is 60Hz, and the motor speed corresponded to one of the standard motor speeds, it would be a pretty safe bet you had a 60Hz motor. If the speed was about 20% faster than a standard speed, the motor is probably a 50Hz motor. Or 20% slower if you were running a 60Hz motor on 50Hz For instance, a 1750 RPM 50Hz motor would spin at about 2100 RPM if you ran it on 60Hz.
