Multiple Choice
If three different resistors are connected in series to a battery, which of the following statements is correct about the current through each resistor?
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27. Resistors & DC Circuits
Resistors and Ohm's Law
Multiple Choice
In a circuit, a resistor has resistance and the current through it is . According to Ohm’s law, how do you calculate the voltage drop across the resistor?
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Verified step by step guidance1
Recall Ohm's law, which relates the voltage (V), current (I), and resistance (R) in a resistor.
Ohm's law states that the voltage drop across a resistor is directly proportional to the current flowing through it and the resistance of the resistor.
The mathematical expression of Ohm's law is given by: \(V = I \times R\).
Here, \(V\) is the voltage drop across the resistor, \(I\) is the current through the resistor, and \(R\) is the resistance.
To find the voltage drop, multiply the current \(I\) by the resistance \(R\) using the formula \(V = I \times R\).
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