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Current Electricity
JEE Main 2021 (Online) 22th July Evening Shift
MCQ+4 / -12021
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 \(\Omega\)m and Resistivity of Aluminium = 2.6 \(\times\) 10\(-\)8 \(\Omega\)m)
(Take Resistivity of Copper = 1.7 \(\times\) 10\(-\)8 \(\Omega\)m and Resistivity of Aluminium = 2.6 \(\times\) 10\(-\)8 \(\Omega\)m)