Physics
Grade-10
Easy
Question
What are the factors affecting the strength of the magnetic field at a point due to a straight conductor carrying current?
- Current in the wire
- Distance from the wire
- Both options A and B
- None of these
Hint:
The amplitude of the electric current and the perpendicular separation between the point and the conductor are two variables that impact the strength of a magnetic field at a point caused by a straight current-carrying conductor. Hence both current and distance are factors.
The correct answer is: Both options A and B
- The Right-Hand Thumb Rule, also known as the Maxwell Corkscrew Rule, can be used to determine the direction of the produced magnetic field in proportion to the flow of electric current through a straight conductor. According to this rule, if a current-carrying conductor is held by the right hand with the thumb kept straight and if the electric current is flowing in the thumb's direction, the direction in which the remaining fingers are wrapped will reveal the direction of the magnetic field.
- The frequency of the current is a factor that affects the magnetic field in the current-carrying conductor.
- The magnetic field is also affected by the distance between the wire and the current-carrying conductor.
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