Question

a metal rod of length 1.5 centimetre ha square cross section of side 20cm what is its resistance if resistivity is 2.75 x 10^-6 ohm cm

Answer 1

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Answer 2

$<h2 > heya$


$<h5 > answer....$



$r = p \ \frac{l}{a}$



$\frac{2.8 \times 10 {}^{ - 8} \times 2 }{1.55 \times 10 {}^{ - 6} }$



$\frac{5.6 \times 0.01}{1.55}$


r = 0.36


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$prabhudutt$