The speed of the generator at which its output voltage just rises above the voltage of the battery being charged is called ............... speed.
Show Hint
- over
- abnormal
- cutting out
- cutting in
The Correct Option is D
Solution and Explanation
This speed is called the cutting in speed.
Below this speed, the generator does not supply current because its output voltage is too low.
Once the generator reaches the cutting in speed, it begins to deliver current to charge the battery.
This prevents reverse current flow from the battery back into the generator when it is turning too slowly.
“Cutting out” refers to the reverse process — when the generator stops supplying current if its speed drops too low.
Therefore, the correct answer is cutting in.
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