The Force Between Two Parallel Currents Carrying Conductors-Definition of Ampere NEET Questions

Physics - Magnetic Effects of Current and Magnetism

The Force Between Two Parallel Currents Carrying Conductors-Definition of Ampere MCQ Questions


7.
The definition of ampere is based on

NEET - 2020

A.
the electrostatic force between two charges
B.
the force between two parallel current-carrying conductors
C.
the charge of an electron
D.
the work done by a charge moving in a circuit
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ANSWER :
B. the force between two parallel current-carrying conductors
8.
The force between two parallel current-carrying conductors depends on:
A.
Magnitude of currents only
B.
Distance between wires only
C.
Both current magnitude and distance
D.
None of these
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ANSWER :
C. Both current magnitude and distance
9.
Two long straight parallel wires carrying equal currents are separated by a distance d. The force per unit length between them is directly proportional to:
A.
d
B.
1/d
C.
I₁I₂
D.
I₁I₂/d²
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ANSWER :
C. I₁I₂
10.
The definition of ampere is based on:
A.
Electromagnetic force
B.
Electrostatic force
C.
Gravitational force
D.
Nuclear force
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ANSWER :
A. Electromagnetic force
11.
The force per unit length between two conductors separated by 1m carrying 1A current each in vacuum is:
A.
2 × 10⁻⁷ N/m
B.
1 × 10⁻⁷ N/m
C.
5 × 10⁻⁷ N/m
D.
10 × 10⁻⁷ N/m
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ANSWER :
B. 1 × 10⁻⁷ N/m
12.
When the force per unit length between two long parallel wires carrying equal currents is 2 x 10-7 N/m, the separation between them is

NEET - 2022

A.
1 m
B.
0.5 m
C.
1 cm
D.
2 cm
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ANSWER :
C. 1 cm