The CORRECT ‘voltage (E) versus time’ excitation signal used in cyclic voltammetry is · ABC26PH0418
Subject: Physical Chemistry · Chapter: Electrochemistry · Topic: Polarography Voltammetry · Exam: GATE 2005-2021 · Marks: 2 · Difficulty: Medium
The CORRECT ‘voltage (E) versus time’ excitation signal used in cyclic voltammetry is
(a)
(b)
(c)
(d)
Answer
Answer: A ✓ checked by 4AB · confidence high
The source book printed no answer; this one was worked out and checked — see the explanation.
Explanation
Cyclic voltammetry sweeps the potential linearly up to a switching potential and back, so the E–t excitation signal is a triangular wave (a); (b) is linear-sweep, (c)/(d) are pulse/staircase waveforms.
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