Vaccum Tube Ka Avishkarak Kaun Hai ? वैक्यूम ट्यूब का आविष्कारक कौन है ?
वैक्यूम ट्यूब का आविष्कारक कौन है ?
ठीक है
Comments suman saini on 27-07-2020 abhay singh on 27-07-2020
जॉन एम्ब्रोस फ्लेमिंग
Fleming,
akhilesh mishra on 26-07-2020
फ्लेमिंग,
Right & computer first generation me use kiya gya
पहली पीढ़ी में इस्तेमाल किया जाने वाला राइट और कंप्यूटर
John Ambrose fleming
Sanket Kumar on 24-07-2020
जॉन एम्ब्रोस फ्लेमिंग
Nimba Ram on 23-07-2020
Right all
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Jhon Ambrose Fleming