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Calculate the electric current density i...

Calculate the electric current density in a uniform wire connected to a battery of emf 3.5 V and negligible internal resistance. The resistance of the wire is `2.0 Omega` and its area of cross-section is `0.70 xx 10^(-6)m^(2).`

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To calculate the electric current density in the wire, we will follow these steps: ### Step 1: Identify the given values - EMF of the battery (V) = 3.5 V - Resistance of the wire (R) = 2.0 Ω - Area of cross-section of the wire (A) = 0.70 × 10^(-6) m² ### Step 2: Use Ohm's Law to find the current (I) ...
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