যখন _______-এ বেশ কয়েকটি রোধ সংযুক্ত থাকে, তখন তাদের সম্মিলিত রোধ ক্ষুদ্রতম পৃথক রোধের চেয়ে কম হয়।

This question was previously asked in
RRB ALP CBT I 31 Aug 2018 Shift 2 Official Paper
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  1. অনুভূমিক
  2. বক্স
  3. সিরিজ
  4. সমান্তরাল

Answer (Detailed Solution Below)

Option 4 : সমান্তরাল
Free
General Science for All Railway Exams Mock Test
20 Qs. 20 Marks 15 Mins

Detailed Solution

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সঠিক উত্তরটি সমান্তরাল

Key Points

ধারণা :

সিরিজে সংযোজন = R1 + R2 + R3

সমান্তরাল সংযোজন

গণনা :

ধরা যাক 4টি রোধ সমান্তরালভাবে সংযুক্ত

R1 = 2 , R2 = 4 , R3 = 5 , R4 = 20  

R1 ||R2 এর জন্য

=

R2 ||R3 এর জন্য

= 4 ,

Req1 ||Req2

= 1 .

তাই

যে সার্কিটের ক্ষুদ্রতম রোধের চেয়ে কম যা হল 

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