Physics · Physics
विद्युत की घंटी में विद्युत धारा के किस प्रभाव का उपयोग किया जाता है?
- 1प्रकाश प्रभाव
- 2वैद्युत स्थिर प्रभाव
- 3रासायनिक प्रभाव
- 4उष्मीय प्रभाव
सही उत्तर देखें
Option E
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