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Using the Concept of Force Between Two Infinitely Long Parallel Current Carrying Conductors, Define One Ampere of Current. - CBSE (Science) Class 12 - Physics

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Question

Using the concept of force between two infinitely long parallel current carrying conductors, define one ampere of current.

Solution

One ampere of current can be defined as the amount of current which when flowing (in same direction) through two infinitely long parallel wires separated by one metre produces an attractive force of 2 × 10−7 N/m. The wires must have negligible circular cross-section and they must be placed in vacuum.

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Solution Using the Concept of Force Between Two Infinitely Long Parallel Current Carrying Conductors, Define One Ampere of Current. Concept: Force Between Two Parallel Currents, the Ampere.
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