Question

Dimensions of a block are 1 cmx 1 cmx 100 cm.
If specific resistance of its material is
13 x 10-2 ohm - m, then the resistance between
the opposite rectangular faces and resistance
between the square faces respectively is
and​

Answer 1

Answer:

Correct answer is 3×10 −7 ohm

Explanation:

Resistance is defined as R = ρl

A

Length l = 1 cm = 10 -² cm

Area of cross-section A = 1cm×100cm = 100m-²

Resistance R = 3×10-7 ×10-2 = 3 × 10-7 Ω.

10-2