| 100. |
The torque of a DC
motor can be increased by
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A. |
increasing the number of coils of wire in
the armature |
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increasing
the number of coils of wire in the armature, increases the strength of the
magnetic field. This increases the torque.
The Correct Answer is A. |
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B. |
decreasing the potential difference |
|
V
= IR This decreases the current and the magnetic field.
This decreases the torque. |
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C. |
increasing distance between armature and
field poles |
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The
force between the armature and the field poles decreases as the distance
is increased. This decreases the torque. |
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D. |
decreasing the strength of the field poles |
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The
force between the armature and the field poles decreases as the field pole
strengths are decreased. This decreases the torque. |
