Biomedical Instrumentation Systems
1st Edition
ISBN: 9781133478294
Author: Chatterjee
Publisher: Cengage
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There is a series type ohmmeter, designed to operate on a 6 V battery. The galvanometer has an internal resistance of 2000 ohms and requires a current of 100 μA for full full scale deflection. The value of R1 is 49 k ohms. If the battery voltage has dropped to 5.9 V, determine the necessary value of R2 to zero the meter; b) According to the conditions indicated in the previous paragraph, an unknown resistance is connected to the meter giving a deflection of 60%. Calculate the value of the unknown resistance.
[Q1. A bar of iron (its area is 100 cm2) was obtained from a tank after 60 days of exposure to the surrounding medium. The sample was cleaned of corrosion products and weighed, and it showed a weight loss of 5 grams. Calculate the corrosion current (Icorr).
Determine the molar mass (amu) of Metal (M) if it took 2.35 minutes for a current of 1.06 A to plate 0.0807 g of metal from a solution containing M2(SO4)3. Input values only with 2 decimal places
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- 4)strip serves as the anode and is connected to the positive terminal of a power supply. The negative terminal of the power supply is connected to an insulated copper wire. An ammeter is placed in the circuit and the power supply is turned on. A current of 1.10 A flows for 6 min and 36 sec. During this time the mass loss of the metal is 0.109 g. What is the molar mass of the metal?arrow_forwardCopper was electroplated from a Cu2SO4 solution onto an electrode with an active surface area of 3.83 cm2. Determine the thickness (mm) of the deposit if the current is kept constant at 3.94 A for 1.4466 hours. (density of Cu = 8.96 g/cm3, MW of Cu = 63.55g/mol). Input values only with 2 decimal places. Do not include the unit.arrow_forwardPlease find the relative voltage.arrow_forward
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