Home › CBSE Class 12 (Science) › Physics › Moving Charges and Magnetism › The ampere definition uses long parallel wires p…
The ampere definition uses long parallel wires placed how far apart?
ATen centimetres
BOne metre
COne centimetre
DOne millimetre
Answer & Solution
Correct answer: B. One metre
The definition specifies conductors one metre apart in vacuum with a force of 2 × 10^-7 N per metre.
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