[Solved] What will be the current density of metal if a current of 30A is passed through a cross-sectional area of 0.5m2?

What will be the current density of metal if a current of 30A is passed through a cross-sectional area of 0.5m2?

a) 7.5 A/m2
b) 15 A/m2
c) 60 A/m2
d) 120 A/m2

Answer: c
Explanation: Current density is the ratio of the current flowing in a cross-sectional area. If a current of 30A is passed through a cross-sectional area of 0.5m2.

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