Physics · Electrical Machines
A single-phase transformer is fed with a rated supply and operates at no load. If the core of the transformer is an air-core, then the waveform of the steady-state magnetising current drawn from the supply would be a ___________.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1flat-topped wave
- 2rectangular wave
- 3peaky wave with a strong third harmonic component
- 4pure sinusoidal wave✓
Correct answer
pure sinusoidal wave
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