What is the correct unit for inductance?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Prepare for the Michelin ECT Exam. Study with comprehensive flashcards and multiple choice questions, each with detailed hints and explanations. Get ready to excel in your exam!

Multiple Choice

What is the correct unit for inductance?

Explanation:
Inductance is measured in henries. This comes from the defining relation ε = -L di/dt, where the induced emf ε equals the inductance L times the rate of change of current. Rearranging, L = ε / (di/dt). Since ε is in volts and di/dt is in amperes per second, the units are V / (A/s) = V·s / A, which is defined as one henry. Put another way, 1 H means a circuit where a current changing at 1 A/s induces 1 volt. The other options refer to different quantities: resistance is ohms, power is watts, while the unit for inductance is the henry.

Inductance is measured in henries. This comes from the defining relation ε = -L di/dt, where the induced emf ε equals the inductance L times the rate of change of current. Rearranging, L = ε / (di/dt). Since ε is in volts and di/dt is in amperes per second, the units are V / (A/s) = V·s / A, which is defined as one henry. Put another way, 1 H means a circuit where a current changing at 1 A/s induces 1 volt. The other options refer to different quantities: resistance is ohms, power is watts, while the unit for inductance is the henry.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy