Amateur Radio Operator Certificate Practice Exam

Question: 1 / 400

What voltage can an alkaline cell drop to when providing high current?

1.0 volts

1.2 volts

An alkaline cell can drop to about 1.2 volts when providing high current due to the internal resistance and chemical reactions occurring within the cell. Under heavy load conditions, the cell's voltage can decrease from its nominal voltage level of around 1.5 volts. This drop reflects the energy taken from the cell and the internal processes that resist current flow, which is common for all batteries if they are drained rapidly. A voltage of 1.2 volts is a typical and practical voltage under load, representing a point where the cell is still providing usable power while accounting for the effects of high current demand.

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1.5 volts

1.8 volts

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