1. What is a potentiostat ?

SCL ELECHEM

Quiz
•
Chemistry
•
University
•
Medium
AHMAD UPM
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15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A device to measure the current and potential of the electrolyte in a electrochemical cell
A electronic device that measures and controls the potential (or voltage) difference between two electrodes
A device to control the rate at which electrode processes occurs
2.
MULTIPLE SELECT QUESTION
1 min • 1 pt
What are some of the main characteristics of a potentiostat ?
Voltage control
Current measurement
Heat control
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Some of the control modes of a potentiostat is a mixed mode and galvanostatic mode
True
False
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is an operational- amplifier (OP-AMP) ?
A mechanical amplifier that increases the output of current running through it
A special circuit that is design to prevent large amount of current from running into the system
A electronic circuit component powered by a DC voltage capable of amplifying an input voltage
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Feedback mechanism refers to a process where energy stored in the capacitor of a circuit is reuse to increase output voltage.
True
False
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Oxidation reaction occurs at the
anode
cathode
electrolyte
external circuit
7.
MULTIPLE SELECT QUESTION
1 min • 1 pt
What is the function of a salt bridge?
o prevent charge buildup
to complete the circuit
to allow the flow of electrons from anode to cathode
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