The basic unit of inductance is called what?

Study for the MTA Electrical Test. Use our flashcards and multiple choice questions to prepare, each question includes hints and explanations. Achieve success on your exam!

Multiple Choice

The basic unit of inductance is called what?

Explanation:
Inductance is measured in henries. The defining idea is that the voltage across an inductor is proportional to how quickly the current changes: v = L di/dt. A value of one henry means a current changing at one ampere per second induces one volt of EMF, so L = 1 V·s/A. In practical terms, you’ll see inductors rated in millihenries or microhenries. The other units correspond to different properties: ohm is resistance, siemens is conductance, and farad is capacitance.

Inductance is measured in henries. The defining idea is that the voltage across an inductor is proportional to how quickly the current changes: v = L di/dt. A value of one henry means a current changing at one ampere per second induces one volt of EMF, so L = 1 V·s/A. In practical terms, you’ll see inductors rated in millihenries or microhenries. The other units correspond to different properties: ohm is resistance, siemens is conductance, and farad is capacitance.

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