Q 5 A piece of metal has a cross-sectional area of 3 cm and a length of 6 km If the potential difference between its two ends is 120 v, calculate 1- electrical resistance 2- electric current - current density of the electric field where the specific resistance is 2.1 and 6 x 107 *

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Q 5 A piece of metal has a cross-sectional area of 3 cm and a length of 6 km If the potential difference between its two ends is 120 v, calculate 1- electrical resistance 2- electric current - current density of the electric field where the specific resistance is 2.1 and 6 x 107 *
Q 5 A piece of metal has a
cross-sectional area of 3 cm
and a length of 6 km If the
potential difference between its
two ends is 120 v, calculate 1-
electrical resistance 2- electric
current - current density of the
electric field where the specific
resistance is 2.1 and 6 x 107 *
Transcribed Image Text:Q 5 A piece of metal has a cross-sectional area of 3 cm and a length of 6 km If the potential difference between its two ends is 120 v, calculate 1- electrical resistance 2- electric current - current density of the electric field where the specific resistance is 2.1 and 6 x 107 *
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