As shown in figure "A" of the illustration,...

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Question 1 of 2066636eed28f7522a1c51dad1

As shown in figure "A" of the illustration, with the switch closed what statement is true if "R1" and "R2" have unequal resistance values? Illustration EL-0019

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Question 1 of 20

66636eed28f7522a1c51dad1

As shown in figure "A" of the illustration, with the switch closed what statement is true if "R1" and "R2" have unequal resistance values? Illustration EL-0019

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🔍 Key Concepts

• Parallel circuits: What is the same across all branches? • Ohm's Law (V = I × R) and how current relates to resistance when voltage is fixed. • Relationship between power (P = V × I = I²R = V²/R), current, and resistance.

💭 Think About

• In figure A, are R1 and R2 connected in series or in parallel once the switch is closed? What does that tell you about the voltage across each resistor? • If the voltage across R1 and R2 is the same but their resistances are different, how must their currents compare according to Ohm's Law? • Given unequal currents and unequal resistances, would you expect the power (energy per unit time) dissipated in each resistor to be the same or different?

✅ Before You Answer

• Confirm whether R1 and R2 share the same two connection points to the circuit (a key sign of a parallel connection). • Use Ohm's Law with a constant voltage to compare currents: I1 = V/R1 and I2 = V/R2. • Check each answer choice against the rules for parallel circuits: same voltage, different branch currents depending on R.

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Question 1 of 2066636eed28f7522a1c51dad1

As shown in figure "A" of the illustration, with the switch closed what statement is true if "R1" and "R2" have unequal resistance values? Illustration EL-0019

Back

Question 1 of 20

66636eed28f7522a1c51dad1

As shown in figure "A" of the illustration, with the switch closed what statement is true if "R1" and "R2" have unequal resistance values? Illustration EL-0019

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

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