MCQ
The coefficient of self induction of a coil is given by.
- ✓$\text{L}=\Big(-\frac{\text{dI}}{\text{dt}}\Big)$
- B$\text{L}=-\frac{\text{edI}}{\text{dt}}$
- C$\text{L}=\frac{\text{dI}}{\text{edt}}$
- D$\text{L}=\frac{\text{dI}}{\text{dt}}\text{e}^2$
✓
Answer
Correct option: A.
$\text{L}=\Big(-\frac{\text{dI}}{\text{dt}}\Big)$
Inductance is the property of a conductor by which a change in current flowing through it induces $($creates$)$ a voltage $($electromotive force$)$ in both the conductor itself $($self$-$inductance$)$ and in any nearby conductors $($mutual inductance$)$. By Lenz's law the induced voltage opposed the the change in current. Hence inductance is defined as.$\text{L}=\Big(-\frac{\text{dI}}{\text{dt}}\Big)$
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