Term
| Amperes/m2 is a measure of _________________. |
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Definition
| current density is the current per unit cross-section area. J=I?a |
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Term
| A conductor has cross-sectional area A and it carries a current of I. What is the current density J? |
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Definition
| The current density is J= I/A |
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Term
| If the current density in a material is J, and the electric field in the conductor is E, what is the resistivity ρ (in Ω· m) |
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Definition
| The resistivity is ρ = E/J |
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Term
| A conventional positive current is considered to be the flow of ___________________________. |
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Definition
| positive charges. Historically, standard circuits were thought to carry positive charges. |
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