stress and strain क्या है? आसान हिंदी में समझाइए
Engineering में stress and strain का अर्थ है: the internal force per unit area and the resulting relative deformation. यही बात हिंदी में, लाइव विज़ुअल के साथ समझने पर टॉपिक बहुत आसान लगने लगता है।
How to approach it step by step
LetMeTeach इस टॉपिक को स्क्रीन पर लाइव बनाकर, बोलकर हिंदी में समझाता है। आप बीच में रोककर दोबारा पूछ सकते हैं, आसान शब्दों में समझ सकते हैं, या भाषा बदल सकते हैं। यह एक-से-एक (1:1) रियल-टाइम टीचिंग है, इसलिए हर स्टेप आपकी समझ के हिसाब से बदलता है।
Worked example
तरीका यह है: apply σ = F/A and ε = ΔL/L, then relate them through Young's modulus. उदाहरण — A steel rod under 10 kN over 100 mm² carries a stress of 100 MPa.
The mistake most learners make
ध्यान रखें: Using the deformed area instead of the original area for engineering stress.
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