Physics
Grade-10
Easy
Question
The strength of magnetic field due to a straight current-carrying conductor, at a given distance, increases with increase in the:
- The temperature of the conductor
- Length of the conductor
- Strength of the current
- Both (a) and (c)
Hint:
The strength of the magnetic field around a current-carrying conductor is directly proportional to the current and inversely proportional to the distance from the wire that surrounds it.
The correct answer is: Strength of the current
The strength of the magnetic field due to a straight current-carrying conductor, at a given distance, increases with an increase in the strength of the current.
- A straight current-carrying conductor creates a magnetic field of concentric circles.
- The strength of the magnetic field depends on the power/ strength of the current applied.
- The strength of the magnetic field increases as the strength of the current increases.
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