Question
Download Solution PDFThe variation of EMF with time for four types of generators is shown in the figures. Which amongst them can be called AC?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
Direct Current is shown in the figure:
Alternating Current is shown in the figure
For Direct current magnitude and direction remain the same with time. For Alternating current both magnitude and direction change with time.
∴ All 4 cases satisfy the condition of AC current.
Hence the correct answer is option 4).
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