Question
Download Solution PDFIf the radius of a circular current carrying coil is doubled then the magnetic field at the center of the coil becomes- (all other factors remains same)
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT:
- Magnetic field: The field around a current-carrying wire or around a magnetic in which the magnetic force can be experienced by another current-carrying wire or by another magnet is called the magnetic field.
The magnetic field at the center of the circular coil is given by:
Where B = strength of the magnetic field, I = current, and R = radius of the circular coil
EXPLANATION:
The magnetic field at centre of the coil (B) is:
B ∝
- If the radius is doubled then the magnetic field at the centre becomes half.
- Hence, option 2 is correct.
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