IMathAS-libretexts

A student connects the circuit shown above and measures the values shown for three currents. The student indicates that each value has a measurement error of Â±0.2â€‰A. Can the information be used as evidence for conservation of charge, and why or why not?

No, because the total current must be measured on the other side of the battery, near where the currents in the two branches come together.
No, because the sum of the currents in the two branches does not equal the measurement of the current through the battery.
Yes, because the measurement error of all three currents is the same.
Yes, because the sum of the currents in the two branches equals the current through the battery, within measurement error.

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