The circuit below is powered by a 9-volt battery. What is the voltage measured by the voltmeter?
A. 2.50 volts
B. 3.15 volts
C. 4.96 volts
D. 6.54 volts

A. - 2.50 volts

Step-by-step explanation:

The equivalent resistance of the two parallel light bulbs is 13 ohms (1R=126+126=113, so R=13).

The total resistance of the circuit is 13+5=18 ohms. By Ohm's law (I=V/R), the current in the circuit is 918, or 0.5 amps.

The voltage across the 5-ohm resistor is also found using Ohm's law, rewritten as V=I⋅R. Therefore, the voltage is 0.5⋅5= 2.5 volts.

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step-by-step explanation:

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