Examlex
Which substances can pass directly through the plasma membrane?
AC
Alternating Current, a type of electrical current where the flow of electric charge periodically reverses direction.
Galvanometer
A meter movement requiring microamperes to cause a full-scale deflection. Many galvanometers have a zero center, which permits them to measure both positive and negative values.
Digital Ammeter
An instrument used to measure electric current flow in a circuit, displaying the value digitally for accuracy and ease of reading.
Voltmeter
An instrument used for measuring the electrical potential difference between two points in an electric circuit.
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