EXPERIMENT - NCERT
2. AC frequency may not be stable. D ISCUSSION 1. The frequency of alternating current is half that of the frequency of the vibrating string. 2. Sonometer wire is made of soft iron for better results. S ELF ASSESSMENT 1. How is ac different from dc? 2. What is the meaning of frequency of ac? 3. How does the wire vibrate? Identify and explain ...
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