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In this lesson, we will learn how to define voltage, current, and resistance and use Ohm's law to calculate these values in simple electrical circuits.

Q1:

A voltage drop of 3.412 V is measured across a resistance of 10.51 Ω. Calculate the current in the resistor.

Q2:

Which of the following is the best definition of electrical current, as measured in amperes?

Q3:

If a redox couple is at equilibrium in an electrochemical cell, which of the following statements about the current and potential is most accurate?

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