Force between the two parallel wires carrying currents has been u… - Vidyadip

MCQ

Force between the two parallel wires carrying currents has been used to define:

✓
Ampere
B
Coulomb
C
Volt
D
Watt

✓

Answer

Correct option: A.

Ampere

Ampere is defined as the constant current that will produce an attractive force of $2 \times 10^{-7}$ newton per metre of length between two straight, parallel conductors $($carrying the constant current$)$ of infinite length and negligible circular cross section placed one metre apart in a vacuum. This is the Ampere's Force Law.

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