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For ECG recording we will particularly interested in frequencies above 1 kHz?
(Yes - No) |
No
|
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At which frequency range you expect to notice more interferences in an ECG system?
(<100 Hz - >100 Hz) |
<100 Hz
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Hand-held two-electrode systems for ECG recording do require to contain an instrumentation amplifier with high CMRR in order to reject the common-mode interference coming from the mains (line)?
(Yes - No) |
No
|
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Is open-loop gain (A) in an OPAMP typically above 10000?
(Yes - No) |
Yes
|
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Is the Slew Rate expressed in [units of voltage/units of time]?
(Yes - No) |
Yes
|
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Is the Gain Bandwidth Product expressed in [Units of voltage * units of frequency]?
(Yes - No) |
No
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Does the conductivity of an ionic solution increase with temperature?
|
Yes
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Do anions have positive charge?
|
No
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Is the conductivity of a 0.9% NaCl aqueous solution approximately two times the conductivity of a 0.45% NaCl aqueous solution?
(Yes - No) |
Yes
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Is heat dissipated in an ionic solution directly proportional to the electric field magnitude in it?
(Yes - No) |
No
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In a solution of CaCl2 (calcium chloride), does electro-neutrality imply that in the bulk solution (i.e its interior) the number of calcium ions will be the same than the number of chlorine ions?
(Yes - No) |
No
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Is the concentration of potassium ions (K+) in the interior of a cell larger than in its exterior?
(Yes - No) |
Yes
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Will the impedance magnitude of a dense cell suspension be significantly larger at low frequencies (<1kHz) than at high frequencies (>1MHz)?
(Yes - No) |
Yes
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Will the impedance magnitude of normal saline (0.9% NaCl) be significantly larger at low frequencies (<1kHz) than at high frequencies (>1MHz)?
(Yes - No) |
No
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Will the 1kHz impedance magnitude of a dense cell suspension be significantly larger at 5ºC than at 37 ºC?
(Yes - No) |
Yes
|
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Will the impedance magnitude of a dense suspension of lysed cells (broken down cells) be significantly larger at low frequencies (<1kHz) than at high frequencies (>1MHz)?
(Yes - No) |
No
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In the case of flat surface electrodes, is the capacitance of the electrical double layer in the order of 10 F/cm2?
(Yes - No) |
No
|
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Is sandblasting a mechanical method?
(Yes - No) |
Yes
|
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If two identical half-cells (i.e. same metal and same ionic media) with a half-cell potential of E1/2 volts are connected through the ionic medium, what will be the voltage measured between their two electrodes?
(0 Volts - 2E1/2 Volts) |
0 Volts
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When DC current is applied through an electrolyte solution, mass transfer between the electrodes and the solution can occur?
(Yes - No) |
Yes
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Is the voltage generated by pH electrode (ISE) linearly dependent on the pH?
(Yes - No) |
Yes
|
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is the voltage generated by a potassium electrode (ISE sensitive to K+) linearly dependant on the activity of K+?
|
No
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Imagine you have a fast glass pH sensor (ISE) capable of sensing step pH changes, would you use a standard oscilloscope (of the type you have at lab sessions) to measure the evolution of pH by directly connecting it to the ISE?
(Yes - No) |
No
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Are Ag-AgCl partially toxic?
(Yes - No) |
Yes
|
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Are platinum electrodes considered as polarizable electrodes?
(Yes - No) |
Yes
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