खालीलपैकी कोणता लोहचुंबकीय पदार्थ आहे?

This question was previously asked in
ALP CBT 2 Electrician Previous Paper: Held on 22 Jan 2019 Shift 2
View all RRB ALP Papers >
  1. निकेल
  2. शिसे 
  3. प्लॅटिनम
  4. तांबे 

Answer (Detailed Solution Below)

Option 1 : निकेल
Free
General Science for All Railway Exams Mock Test
20 Qs. 20 Marks 15 Mins

Detailed Solution

Download Solution PDF

लोहचुंबकीय पदार्थ: ज्या पदार्थांना बाह्य चुंबकीय क्षेत्रामध्ये लागू केलेल्या क्षेत्राच्या त्याच दिशेने ठेवल्यास ते जास्त प्रमाणात चुंबकीय गुणधर्म दर्शवतात त्यांना लोहचुंबकीय पदार्थ म्हणतात.

उदाहरण: लोह, निकेल, कोबाल्ट

गुणधर्म:

  • हे चुंबकीय द्विध्रुवांच्या समांतर संरेखनाद्वारे वैशिष्ट्यीकृत आहेत
  • हे पदार्थ चुंबकाद्वारे जास्त आकर्षित होतात
  • हे लागू केलेल्या चुंबकीय क्षेत्राच्या दिशेने मजबूत चुंबकीकरण विकसित करते
  • चुंबकीय क्षेत्र काढून टाकल्याने, ते त्याचे चुंबकीकरण गुणधर्म गमावत नाही
  • चुंबकीय संवेदनशीलता 1 पेक्षा जास्त असते
  • सापेक्ष पारगम्यता 1 पेक्षा जास्त असते
  • मोकळ्या जागेच्या तुलनेत चुंबकीय पारगम्यता खूप जास्त असते 

 

साहित्य

चुंबकीय संवेदनशीलता (X)

सापेक्ष पारगम्यता

(K= 1 + Xm)

चुंबकीय पारगम्यता

m = Kmμ0)

विषम चुंबकीय

-10-5 to -10-9

μm  μ0

अणुचुंबकीय 

10-5 to 10-3

> 1

μm > μ0

लोहचुंबकीय

≫ 1

≫ 1

μ μ0

Latest RRB ALP Updates

Last updated on Jun 11, 2025

-> The RRB NTPC Admit Card 2025 has been released on 1st June 2025 on the official website.

-> The UPSC Prelims Result 2025 and UPSC IFS Result 2025 has been released @upsc.gov.in

-> Railway Recruitment Board activated the RRB ALP application form 2025 correction link, candidates can make the correction in the application form till 31st May 2025. 

-> The Railway Recruitment Board (RRB) has released the official RRB ALP Notification 2025 to fill 9,970 Assistant Loco Pilot posts.

-> The Railway Recruitment Board (RRB) has released the official RRB ALP Notification 2025 to fill 9,970 Assistant Loco Pilot posts.

-> The official RRB ALP Recruitment 2025 provides an overview of the vacancy, exam date, selection process, eligibility criteria and many more.

->The candidates must have passed 10th with ITI or Diploma to be eligible for this post. 

->The RRB Assistant Loco Pilot selection process comprises CBT I, CBT II, Computer Based Aptitude Test (CBAT), Document Verification, and Medical Examination.

-> This year, lakhs of aspiring candidates will take part in the recruitment process for this opportunity in Indian Railways. 

-> Serious aspirants should prepare for the exam with RRB ALP Previous Year Papers.

-> Attempt RRB ALP GK & Reasoning Free Mock Tests and RRB ALP Current Affairs Free Mock Tests here

Hot Links: online teen patti real money teen patti classic teen patti royal