What is the current flowing through R in...

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Question 1 of 2066636eed28f7522a1c51d46b

What is the current flowing through R in figure "B" of the illustrated circuit when the switch is closed 3 if the battery voltage is 12 VDC and resistance of R is 2 ohms, R is 3 ohms, and R is 6 ohms, 1 2 3 respectively? Illustration EL-0019

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Question 1 of 20

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🔍 Key Concepts

• Parallel circuits and how voltage is the same across all branches • Using Ohm’s Law ( I = \frac{E}{R} ) to find branch current • Distinguishing between total circuit current and current in one resistor

💭 Think About

• Look at figure B and decide: are R1, R2, and R3 in series or in parallel once the switch is closed? What does that tell you about the voltage across each resistor? • If each branch has the same supply voltage, how do you find the current in just ONE resistor when you know its resistance value? • Which resistor’s value (2 Ω, 3 Ω, or 6 Ω) matches the branch the question is asking about, and what current does Ohm’s Law give for that branch?

✅ Before You Answer

• Be sure you are calculating branch current, not total circuit current • Confirm that you are using 12 V directly across the resistor in question (true for parallel branches) • Double‑check that you use the correct resistance value (2 Ω, 3 Ω, or 6 Ω) for the resistor the question is asking about before applying Ohm’s Law

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