Quelle valeur de résistance est nécessaire pour faire chuter 9 volts avec un courant de 10 milliampères?

Why

To find the resistance needed to drop 9 volts with a current of 10 milliamperes, you must first convert the current to amperes, which is 0.01 amperes, then divide the voltage by this current using Ohm's Law. The full explanation — and one for every question — is in Pro.

Practise this section

Basic electronics and theory is section B-005 of the Basic exam: The theory: Ohm's law, power, series and parallel circuits, AC and DC, frequency and wavelength, decibels, and the metric prefixes the exam leans on.

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