Part A What is the blood resistivity if a 8.8 V potential difference causes a 220 μA current through the blood in the vein? Express your answer in ohm meters. 石 ΕΠΙ ΑΣΦ 0 ? ρ p = Submit Request Answer n.m
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- An experiment is conducted to measure the electrical resistivity of Nichrome in the form of wires with different lengths and cross-sectional areas. For one set of measurements, a student uses 30 gauge wire, which has a cross-sectional area of 7.30 ✕ 10−8 m2. The student measures the potential difference across the wire and the current in the wire with a voltmeter and an ammeter, respectively. For each of the measurements given in the following table taken on wires of three different lengths, calculate the resistance of the wires and the corresponding value of the resistivity. What is the average value of the resistivity? Ω · m By what percent does this differ from the value given in this table (1.50 ✕ 10−6 Ω · m)? %help me with the following question and make sure 100% the answer is correct, thank you A gold wire 6.16 mm long and of diameter 0.820 mmmm carries a current of 1.16 AA . For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of Electrical hazards in heart surgery. Part A. Find the resistance of this wire. Express your answer in ohms. Part B. Find the potential difference between its ends. Express your answer in volts.if possible, please write on paper and upload photo of paper. Other forms of answers do not show for me. Two conductors are made of the same material and have the same length. Conductor A is a solid wire of diameter 1.3 mm. Conductor B is a hollow tube of outside diameter 7.1 mm and inside diameter 6.1 mm. What is the resistance ratio RA/RB , measured between their ends?
- What is the resistance of a 3.4-m length of copper wire 1.8 mm in diameter? The resistivity of copper is 1.68 × 10¬8N.m. Express your answer to two significant figures and include the appropriate units. HA ? R = Value UnitsA length of aluminum wire is connected to a precision 10.00-V power supply, and a current of 0.4212 A is precisely measured at 23.5 °C. The wire is placed in a new environment of unknown temperature where the measured current is 0.3758 A. The temperature coefficient of resistivity of aluminum is 0.00429 (°C) -¹ Part A What is the unknown temperature? Express your answer using three significant figures. T= Submit G| ΑΣΦ Request Answer ? °C Review I Constants2. Page > of 3 5. Two long coaxial metal cylinders with radii a and b are separated by material of conductivity o (see figure below). The conductivity is not uniform and changes as = (s)0 where k is a constant. If the two cylinders are kept at a potential difference V, find the resistance R between the cylinders. (s)o Hint: Since the conductivity is a function of position, the charge density in the resistive medium is not zero and E does not go like 1/s. However, since the current I is steady, the same current flows across each eylindrical surface. Instead of using Gauss' Law, find E in terms of I, from Ohm's Law. acer F10 F11
- An 18 gauge copper wire (diameter 1.02 mm) carries a current with a current density of 2.90×10^6 A/m2. The density of free electrons for copper is 8.5×10^28 electrons per cubic meter. Calculate the current in the wire. Express your answer with the appropriate units. Calculate the magnitude of the drift velocity of electrons in the wire. Express your answer with the appropriate units.A current-carrying gold wire has a diameter of 0.87 mm. The electric field in the wire is 0.54 V/m. Use the resistivity at room temperature for gold p = 2.44 x 10-8.m. For related problemsolving tips and strategies, you may want to view a Video Tutor Solution of Electric field, potential difference, and resistance in a wire. What is the current carried by the wire? Express your answer with the appropriate units. I = Submit Part B V = Value Submit Part C What is the potential difference between two points in the wire 6.7 m apart? Express your answer with the appropriate units. Request Answer R= μA Value Request Answer Units What is the resistance of a 6.7 m length of this wire? Express your answer with the appropriate units. DI ■ Value ¸μA Units ? Units ? ?Three resistors, R1= 30 Ω, R2= 77 Ω, and R3=R, are connected in parallel with a 12 V battery. A) The total current flowing through the battery is 0.88 A. Find the value of resistance R. Express your answer using two significant figures. B) Find the current through each resistor. Enter your answers numerically separated by commas. Express your answers using two significant figures.
- A copper wire is having a length of 8m and a radius of 32mm. The resistivity (p) of copper is 1.72x108 Qm. Calculate the resistance (R) of the wire. i) The area of cross section (A) of the wire (in m²) = %3D ii) The resistance (R) of the wire (in Q) =Variations in the resistivity of blood can give valuable clues to changes in the blood's viscosity and other properties. The resistivity is measured by applying a small potential difference and measuring the current. Suppose a medical device attaches electrodes into a 1.5-mm-diameter vein at two points 5.0 cm apart. What is the blood resistivity if a 9.0 V potential difference causes a 240 μA current through the blood in the vein?Express your answer in ohm meters.A steel wire, of length L and diameter D, has a resistance of 100 . What current would flow through a silver wire of the same diameter and the same length if a 13.0 V potential difference were applied across its length? Express your answer in amperes. I = ΠΫΠΙ ΑΣΦ ! You have already submitted this an No credit lost. Try again. Submit ? Previous Answers Request Answer A Enter a new answer.