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


1.
Two long parallel conductors carrying currents attract each other when the currents are:
A.
In the same direction
B.
In opposite directions
C.
Perpendicular to each other
D.
At an angle of 45°
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ANSWER :
A. In the same direction
2.
The SI unit of the force per unit length between two current-carrying conductors is

NEET - 2019

A.
Newton
B.
Coulomb
C.
Newton per meter
D.
Ampere
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ANSWER :
A. Newton
3.
The SI unit of the force per unit length between two parallel current-carrying conductors is:
A.
Newton per meter
B.
Newton per ampere
C.
Tesla per meter
D.
Joule per meter
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ANSWER :
A. Newton per meter
4.
Two long parallel wires carry equal currents in opposite directions. The force per unit length between them is

NEET - 2018

A.
Repulsive
B.
Attractive
C.
Zero
D.
Infinite
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ANSWER :
A. Repulsive
5.
According to the definition of ampere, two parallel conductors placed 1m apart in vacuum experience a force of:
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
6.
If the currents in two parallel wires are in opposite directions, the wires:
A.
Repel each other
B.
Attract each other
C.
Move in circular paths
D.
Remain stationary
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ANSWER :
B. Attract each other