What is the voltage across terminals A and B in the given circuit?

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Enhance your understanding of the fundamentals of electricity with the AMT General Exam. Study with multiple-choice questions crafted to improve your knowledge and confidence. Prepare effectively for your success!

Multiple Choice

What is the voltage across terminals A and B in the given circuit?

Explanation:
Voltage across A and B is the difference in their electrical potentials. To find it, look at how the total supply voltage is divided by the resistor network. In this circuit, the portion between A and B takes two-thirds of the total voltage. If the supply is 4.5 volts, the drop across that portion is (2/3) × 4.5 = 3.0 volts. So the voltage across AB is 3.0 V, with A being 3.0 volts higher than B (polarity depends on the current direction shown).

Voltage across A and B is the difference in their electrical potentials. To find it, look at how the total supply voltage is divided by the resistor network. In this circuit, the portion between A and B takes two-thirds of the total voltage. If the supply is 4.5 volts, the drop across that portion is (2/3) × 4.5 = 3.0 volts. So the voltage across AB is 3.0 V, with A being 3.0 volts higher than B (polarity depends on the current direction shown).

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