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Current Electricity question

2021 · 22 Jul · Shift 2 · Q48
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  5. /2021 · 22 Jul · Shift 2 · Q48

Current Electricity question

2021 · 22 Jul · Shift 2 · Q48

JEE MainPhysicsCurrent ElectricityMCQ+4 / −1
A Copper (Cu) rod of length 25 cm and cross-sectional area 3 mm2 is joined with a similar Aluminium (Al) rod as shown in figure. Find the resistance of the combination between the ends A and B. (Take Resistivity of Copper = 1.7 ×\times× 10 −-− 8 Ω\OmegaΩ m and Resistivity of Aluminium = 2.6 ×\times× 10 −-− 8 Ω\OmegaΩ m) JEE Main 2021 (Online) 22th July Evening Shift Physics - Current Electricity Question 193 English
  1. A
    0.0858 m Ω\OmegaΩ
  2. B
    1.420 m Ω\OmegaΩ
  3. C
    0.858 m Ω\OmegaΩ
  4. D
    2.170 m Ω\OmegaΩ
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