BioMedical Admissions Test (BMAT) 2026 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 400

What is the term for a source of electric power that provides a constant voltage?

Cell

The term for a source of electric power that provides a constant voltage is a cell. A cell is a device that converts chemical energy into electrical energy and typically delivers a stable voltage output. This characteristic makes cells fundamental components in batteries and various electronic devices where a constant energy supply is necessary for functioning properly.

The other options do not fit this definition as they serve different functions. A transformer is used to change the voltage levels of alternating current electricity, rather than providing a constant voltage itself. A switch is a device that makes or breaks a circuit, controlling the flow of electricity but does not generate power on its own. A generator converts mechanical energy into electrical energy and can produce varying voltages depending on its design and load conditions.

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Transformer

Switch

Generator

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