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In a series circuit with a 24V source and two resistors of 4Ω and 8Ω, what is th
Practice Questions
Q1
In a series circuit with a 24V source and two resistors of 4Ω and 8Ω, what is the voltage across the 8Ω resistor?
16V
8V
12V
4V
Questions & Step-by-Step Solutions
In a series circuit with a 24V source and two resistors of 4Ω and 8Ω, what is the voltage across the 8Ω resistor?
Steps
Concepts
Step 1: Identify the total voltage in the circuit, which is given as 24V.
Step 2: Identify the resistors in the circuit. We have R1 = 4Ω and R2 = 8Ω.
Step 3: Calculate the total resistance in the circuit by adding the two resistors: Rtotal = R1 + R2 = 4Ω + 8Ω = 12Ω.
Step 4: Use the voltage division formula to find the voltage across the 8Ω resistor: V8Ω = Vtotal * (R8Ω / Rtotal).
Step 5: Substitute the values into the formula: V8Ω = 24V * (8Ω / 12Ω).
Step 6: Simplify the fraction: 8Ω / 12Ω = 2/3.
Step 7: Multiply 24V by 2/3 to find V8Ω: V8Ω = 24V * (2/3) = 16V.
No concepts available.
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