What is Volt (V)? Unit of Electrical Potential and Voltage What is Ampere (A)? Unit of Electrical Current & Calculation What is Ohm (?)? Unit of Electrical Resistance and Impedance Quiz
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5 Questions
Question 1 of 5
Which of the following best describes the unit 'Volt (V)'?
Voltage is measured in Volts and represents the potential difference.
Question 2 of 5
If a circuit has a voltage of 12V and a resistance of 4?, what is the current flowing through the circuit in Amperes (A)?
Using Ohm's law (I = V/R), 12V/4? = 3A.
Question 3 of 5
What does the unit 'Ampere (A)' measure?
Ampere represents the flow of electric charge (current) in a circuit.
Question 4 of 5
What is the unit for electrical resistance or impedance?
Electrical resistance and impedance are measured in Ohms (?).
Question 5 of 5
Ohm's Law states the relationship between voltage (V), current (I), and resistance (R). Which of the following equations correctly expresses this relationship?
Ohm's Law is expressed as V = I * R.
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