Q. Current density is defined as

वर्तमान घनत्व को इस प्रकार परिभाषित किया गया है

Current per unit area
वर्तमान प्रति इकाई क्षेत्र

Voltage per unit area
प्रति इकाई क्षेत्र वोल्टेज

Power per area
प्रति क्षेत्र बिजली

Resistance per area
प्रति क्षेत्र प्रतिरोध

Current density $J$ is:

J = \frac{I}{A}

Where $I$ is current and $A$ is cross-sectional area.

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