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A steel rod of 1 sq cm. The cross-sectional area is 100 cm. long and has a young's modulus of elasticity 2 x 106 Kgf/cm2. It is subjected to an axial pull of 2000 kgf. The elongation of the rod will be:
  • a)
    0.05
  • b)
    0.1
  • c)
    0.15
  • d)
    0.20
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
A steel rod of 1 sq cm. The cross-sectional area is 100 cm. long and ...
The elongation of the bar is directly proportional to the tensile force and the length of the bar and inversely proportional to the cross-sectional area and the modulus of elasticity. = length of bar (in.) A = cross-sectional area of bar (in.2) d = total elongation of bar (in.)
Hence option A is correct.
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A steel rod of 1 sq cm. The cross-sectional area is 100 cm. long and ...
Calculation of Elongation of Steel Rod Under Axial Pull

Given data:

- Cross-sectional area of the steel rod = 1 sq cm = 100 cm^2
- Length of the steel rod = 100 cm
- Young's modulus of elasticity of the steel rod = 2 x 10^6 Kgf/cm^2
- Axial pull on the steel rod = 2000 kgf

Formula used:

- Elongation (δ) = (F × L) / (A × E)

where,

- F = Axial pull on the steel rod
- L = Length of the steel rod
- A = Cross-sectional area of the steel rod
- E = Young's modulus of elasticity of the steel rod

Substituting the given values in the formula, we get:

- Elongation (δ) = (2000 × 100) / (100 × 2 × 10^6)
- Elongation (δ) = 0.05

Therefore, the elongation of the steel rod under the axial pull of 2000 kgf is 0.05 cm or 0.05 units. Hence, the correct answer is option A, i.e., 0.05.
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A steel rod of 1 sq cm. The cross-sectional area is 100 cm. long and has a young's modulus of elasticity 2 x 106 Kgf/cm2. It is subjected to an axial pull of 2000 kgf. The elongation of the rod will be:a)0.05b)0.1c)0.15d)0.20Correct answer is option 'A'. Can you explain this answer?
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A steel rod of 1 sq cm. The cross-sectional area is 100 cm. long and has a young's modulus of elasticity 2 x 106 Kgf/cm2. It is subjected to an axial pull of 2000 kgf. The elongation of the rod will be:a)0.05b)0.1c)0.15d)0.20Correct answer is option 'A'. Can you explain this answer? for SSC 2024 is part of SSC preparation. The Question and answers have been prepared according to the SSC exam syllabus. Information about A steel rod of 1 sq cm. The cross-sectional area is 100 cm. long and has a young's modulus of elasticity 2 x 106 Kgf/cm2. It is subjected to an axial pull of 2000 kgf. The elongation of the rod will be:a)0.05b)0.1c)0.15d)0.20Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for SSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A steel rod of 1 sq cm. The cross-sectional area is 100 cm. long and has a young's modulus of elasticity 2 x 106 Kgf/cm2. It is subjected to an axial pull of 2000 kgf. The elongation of the rod will be:a)0.05b)0.1c)0.15d)0.20Correct answer is option 'A'. Can you explain this answer?.
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