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प्रश्न
Which set of conditions must be satisfied in the definition of the ampere?
पर्याय
Infinitely long, straight, parallel conductors of negligible circular cross-section, placed 1 metre apart in a vacuum
Infinitely long, straight, perpendicular conductors placed 1 metre apart in a vacuum
Finite-length, curved conductors of large cross-section, placed 1 metre apart in air
Infinitely long, straight, parallel conductors placed 1 centimetre apart in a paramagnetic medium
MCQ
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उत्तर
The definition of the ampere specifically requires two infinitely long, straight, parallel conductors of negligible circular cross-section, separated by 1 metre in a vacuum, so that the ideal force per unit length of 2 × 10⁻⁷ N/m is obtained.
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