Question
Download Solution PDF1 Ω के टर्मिनलों के बीच प्रतिरोध वाला एक dc श्रेणी मोटर 20 A लेते हुए 250 V आपूर्ति से 1000 rpm पर चलता है। जब 6 Ω के अतिरिक्त प्रतिरोध को श्रेणी में डाला जाता है और समान धारा ली जाती है, तो नयी गति क्या होगी?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFV = 200 V, R1 = Ra + Rse = 1 ओम, Ia = 15 A
N1 = 1000 rpm
R1 = Ra + Rse = 7 Ω
Eb ∝ Nϕ और ϕ ∝ Ia
E1 = 250 – 20 × 1 = 230 V
दिया गया है कि Ia1 = Ia2
E1 = 250 – 20 × 7 = 110 V
⇒ N2 = 478.26 rpm
Last updated on Jun 23, 2025
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