Physics · Electrical Machines
Under no-load conditions, if the frequency of the AC supply to a single-phase transformer is decreased while maintaining a constant magnetic flux density in the core, what is the impact on the induced voltage in the secondary winding?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The induced voltage remains completely constant.
- 2The induced voltage experiences a linear decrease.✓
- 3The induced voltage demonstrates a sinusoidal time variation but constant RMS value.
- 4The induced voltage undergoes a linear increase.
Correct answer
The induced voltage experiences a linear decrease.
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