Question
Download Solution PDFIf 10A current is flowing through a solenoid of inductance 5H, find the magnetic energy stored in the solenoid.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT:
- Solenoid: It is a coil wound into a tightly packed helix, that generates a controlled magnetic field.
- The uniform magnetic field in the solenoid is produced when an electric current is passed through it.
- Inductor: A device or component of a circuit that has significant self-inductance and stores energy in a magnetic field.
The formula used to find the energy stored in a magnetic field is given by:
E = 1/2 × L × I2
Where L is the inductance and I is current in the solenoid.
CALCULATION:
given that L = 5H; current I = 10A
The magnetic energy stored in the solenoid E = 1/2 × L × I2
E = 1/2 × 5 × 102 = 250 Joule
- So the correct answer will be option 2 i.e. 250 J
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