Question

S.I. unit of current density is -

• A. Coulomb / meter
• B. Ampere / meter$^2$
• C. Coulomb / meter$^2$
• D. Ampere / meter

Hint:

The unit of current density is derived from the formula \( J = \frac{I}{A} \), where \( I \) is the current in amperes and \( A \) is the area in square meters.

Answer 1

The Correct Option is B

Current density is defined as the amount of electric current flowing per unit area. The correct unit of current density is Ampere per square meter (Ampere / meter$^2$).