| • इलेक्ट्रोफोनिक प्रभाव विद्युत्-श्रवणिक प्रभाव | |
| effect: परिणाम प्रभात | |
electrophonic effect मीनिंग इन हिंदी
electrophonic effect उदाहरण वाक्य
उदाहरण वाक्य
- Antonio Meucci invented the first device that allowed the electrical transmission of voice over a line in 1849 . However Meucci's device was of little practical value because it relied upon the electrophonic effect and thus required users to place the receiver in their mouth to " hear " what was being said.