In the illustrated circuit of figure "A", if...

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Question 1 of 205eccefa3bacbc34ba4d47f11

In the illustrated circuit of figure "A", if the battery voltage is 24 VDC, the resistance of R1 is 24 ohms, and the resistance of R2 is 24 ohms, what will be the resulting total current with the switch closed? See illustration EL-0019.

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🔍 Key Concepts

• Ohm’s Law (I = E / R) and how total current relates to total resistance in the circuit • How to find equivalent resistance of resistors in parallel (R1 and R2 are not in series in figure A) • Relationship between total current from the source and the branch currents in each parallel leg

💭 Think About

• Look closely at how R1 and R2 are connected in figure A: do both ends of each resistor tie to the same two nodes, or are they end‑to‑end? What does that tell you about series vs. parallel? • Once you know the resistors are series or parallel, how do you compute the total (equivalent) resistance, and then use 24 V to get the total current? • If the two resistors are identical and in parallel, what happens to the equivalent resistance compared with a single resistor?

✅ Before You Answer

• Confirm whether R1 and R2 share both connection points (parallel) or only one (series) by tracing the lines in the drawing. • After finding equivalent resistance, double‑check with Ohm’s Law that the units make sense: volts ÷ ohms = amps. • Estimate the current through just one 24‑ohm resistor at 24 V; then check if the total current you found for the combined circuit is greater than that single‑resistor current, as it should be for adding a parallel path.

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