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CGP EDU Academic Team
Published on: September 12, 2026
In SI, Henry is the unit of
Text Solution
Verified by ExpertsThe correct answer is:
C
Henry (H) is the SI unit of inductance.
1. Self-inductance ($L$): Defined by the formula for self-induced electromotive force (emf):
$$\mathcal{E} = -L \frac{dI}{dt} \implies L = -\frac{\mathcal{E}}{dI/dt}$$
The unit of self-inductance is $\text{Volt}\cdot\text{second}/\text{Ampere} = \text{Henry (H)}$.
2. Mutual inductance ($M$): Defined by the formula for mutually induced electromotive force:
$$\mathcal{E} = -M \frac{dI}{dt} \implies M = -\frac{\mathcal{E}}{dI/dt}$$
The unit of mutual inductance is also $\text{Volt}\cdot\text{second}/\text{Ampere} = \text{Henry (H)}$.
Therefore, Henry is the SI unit for both self-inductance and mutual inductance.
Hence, the correct option is C.
1. Self-inductance ($L$): Defined by the formula for self-induced electromotive force (emf):
$$\mathcal{E} = -L \frac{dI}{dt} \implies L = -\frac{\mathcal{E}}{dI/dt}$$
The unit of self-inductance is $\text{Volt}\cdot\text{second}/\text{Ampere} = \text{Henry (H)}$.
2. Mutual inductance ($M$): Defined by the formula for mutually induced electromotive force:
$$\mathcal{E} = -M \frac{dI}{dt} \implies M = -\frac{\mathcal{E}}{dI/dt}$$
The unit of mutual inductance is also $\text{Volt}\cdot\text{second}/\text{Ampere} = \text{Henry (H)}$.
Therefore, Henry is the SI unit for both self-inductance and mutual inductance.
Hence, the correct option is C.
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