Question:
The internal resistance of armature should ideally be:
The internal resistance of armature should ideally be:
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For maximum efficiency and output, an ideal armature should have \textbf{zero internal resistance} — no energy should be wasted within the machine.
Updated On: Jun 24, 2025
- Zero
- Very large
- Very small
- Infinite
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The Correct Option is A
Solution and Explanation
The armature is the rotating or stationary component in an electric machine where voltage is induced or current flows.
In an ideal condition, the internal resistance of the armature winding should be zero to ensure:
- No voltage drop within the armature itself,
- Maximum terminal voltage is delivered to the load, and
- No internal power losses due to resistive heating ($I^2R$ losses).
If there is any resistance in the armature winding, part of the generated voltage is lost internally, reducing the efficiency and performance of the machine.
Thus, zero internal resistance is ideal for perfect energy conversion.
In an ideal condition, the internal resistance of the armature winding should be zero to ensure:
- No voltage drop within the armature itself,
- Maximum terminal voltage is delivered to the load, and
- No internal power losses due to resistive heating ($I^2R$ losses).
If there is any resistance in the armature winding, part of the generated voltage is lost internally, reducing the efficiency and performance of the machine.
Thus, zero internal resistance is ideal for perfect energy conversion.
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