MCQ
Two identical inductance carry currents that vary with time according to linear laws (as shown in figure). In which of two inductance is the self induction $emf$ greater?
- ✓$1$
- B$2$
- Csame
- Ddata are insufficient to decide
✓
Answer
Correct option: A.
$1$
a
$e=-L\frac{d i}{d t} \Rightarrow\left(-\frac{d i}{d t}\right)_{1 }> \left(-\frac{d i}{d t}\right)_{2} \Rightarrow e_{1} > e_{2}$
$e=-L\frac{d i}{d t} \Rightarrow\left(-\frac{d i}{d t}\right)_{1 }> \left(-\frac{d i}{d t}\right)_{2} \Rightarrow e_{1} > e_{2}$
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