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principle of dc motor

Principal of DC motor is that a current carrying conductor experiences a force when placed in a magnetic field.. It's working is similar to the AC motor, except that a split ring is used in place of slip rings.

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The introduction of DC motors to run machinery eliminated the need for local steam or internal combustion engines, andline shaftdrive systems. DC motors can operate directly from rechargeable batteries, providing the motive power for the first electric vehicles. Today DC motors are still found in applications as small as toys and disk drives, or in large sizes to operate steel rolling mills and paper machines.

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