QUESTION 5 7 points Save Answer Which of the following is no

QUESTION 5 7 points Save Answer Which of the following is not true? In building the Photoplethysmography (PPG), photodiode works in the forward biased mode. in building the Photoplethysmography (PPG), photodiode works in the reverse biased mode. photovoltaic sensors can be used to detect radiation. Photovoltaic light sensor will generate DO electric voltage/current upon light radiation. To measure the light, we can directly amplify the voltage generated from the photovoltaic sensor and set up relationship between the output voltage and thelight intensity Photoconductive cells can be used to measure radiation. The resistance of photoconductive cells is light dependent. In order to measure radiation through photoconductive cell, we need to supply external power and then measure the resistance of the photoconductive cell. QUESTION 6 7 points Save Answer Which of the following is not true All the cells in the body are excitable cells and can generate action potential Nerve action potential and cardiac action potential have different morphology because their action potential have different functions: nerve action potential is to transmit information while cardiac action potential is to contract muscles. Resting membrane potential is set up by the lipid bilayer cell membrane that separates charged ions and creates potential difference across the membrane Biopotentials measured from the body, like ECG, ENG, G etc. are due to the propagation of action potentials. 11 points Save Answer QUESTION 7 Tell the difference in the measurement of neural conductive velocity for afferent nerves and efferent nerves.

Solution

Question 5

Ans: the second statement \" In building the photoplethysmography , photodiode works in the reverse based mode is false.

Question 6

The first statement \"All the cells in the body are excitable and can generate electricity \" is not true. Excitable cells are those that can be stimulated to create a tiny electric current.

Question 13

The first statement \" AC current is safer for humans than DC current in terms of electric shock at the same power \" is not true .

It is sometimes suggested that human lethality is most common with alternating current at 100–250 volts; however, death has occurred below this range, with supplies as low as 42 volts.