the ends of a cylindrical bar of carbon (o = If 3 X 10 S/m) of radius 5 mm and length 8 cm are maintained at a potential difference of 9 V, find (a) the resistance of the bar, (b) the current through the bar, (c) the power dissipated in the bar.
the ends of a cylindrical bar of carbon (o = If 3 X 10 S/m) of radius 5 mm and length 8 cm are maintained at a potential difference of 9 V, find (a) the resistance of the bar, (b) the current through the bar, (c) the power dissipated in the bar.
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If the ends of a cylindrical bar of carbon (σ = 3 X 104 S/m) of radius 5 mm and length
8 cm are maintained at a potential difference of 9 V, find (a) the resistance of the bar,
(b) the current through the bar, (c) the power dissipated in the bar.
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