Variations in the resistivity of blood can give valuable clues about changes in various properties of the blood. Suppose a medical device attaches two electrodes into a 1.0-mm-diameter vein at positions 5.1 cm apart. ▼ Part A What is the blood resistivity if a 9.0 V potential difference causes a 280 μA current through the blood in the vein? Express your answer in ohm-meters. [5] ΑΣΦ p= ? Ω · m

Q: Part A If 170 mA flows through each bulb, what is the resistance of each? Express your answer using…

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Q: Electrons in silicon have a mobility of 1000 cm' V-sec. The electrie field is applied to make the…

A: (1) Given: The mobility is 1000 cm2/V.sec. The velocity of the electron is 3x107 cm/s. The thickness…

Q: The current-density magnitude in a certain circular wire is J= (3.00 x 1010 A/m*)r?, where ris the…

A: Given: Current Density,J3×1010A/m4r2Radius,r=2mm=2×10-3mPotential…

Q: the resistance

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Q: The copper wire with diameter 0.7 mm and 80 m long is connected to 15 V battery. Calculate the…

A: Given data:  Diameter (d) = 0.7 mm = 0.7×10-3 m Length (L) = 80 m Voltage (V) = 15 V Resistivity (ρ)…

Q: What is the resistance (in units of 0) of a wire made of a material with a resistivity of 3.2 × 10-8…

A: Resistivity ῥ = 3.2*10-8 ohm . m Length L = 39.3 m Diameter = 0.50mm = 0.50*10-3m

Q: If the battery in the circuit below is 7.16V, resistor R1=331.15, and resistor R2=51.49N, what is…

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Q: In the Bohr model of the hydrogen atom, an electron in the 2nd excited state moves at a speed of…

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Q: Find the resistance between the inner and the outer curved surfaces of the block shown below, where…

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Q: Under the influence of a constant E field of 700.0 N/C; 4.53* 1016 electrons pass through a 5.00 cm…

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Q: A 200-km-long high-voltage transmission line 3.3 cm in diameter carries a steady current of 1000 A.…

A: From questionRadius R=22=1 cmI=1000 AFree charge density=8.85×1028 electrons/m3we know drift…

Q: 43 A block in the shape of a rectangular solid has a cross- sectional area of 3.50 cm² across its…

A: Given Data, Cross-sectional area (A)=3.50 cm2 Front to rear length (l)=15.8 cm Resistance (R)=935 Ω…

Q: A human being can be electrocuted if a current as small as 53 mA passes near the heart. An…

A: We can use ohm's law to find voltage

Q: A 5.00 A current runs through a 12 gauge copper wire (diameter2.05 mm) and through a light bulb.…

A: Given, I=5A=5C/s t=1s n=8.5×1028 we know, I=qtq=I×tq=5C

Q: A potential difference of 2.0 V is applied across a cylindrical conductor. The conductor is 20.0 m…

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Q: Variations in the resistivity of blood can give valuable clues to changes in the blood's viscosity…

A: Given: The diameter of the vein is 1.5 mm. The distance between the points is 5.0 cm. The potential…

Q: What is the resistance (in units of 0) of a wire made of a material with a resistivity of 3.2 x 108…

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Q: A) A long wire with a radius of 0.450 cm carries a current. The potential difference across a 3.60 m…

A: Current in the circuit = Potential difference/ Resistance of wire. Using relation between resistance…

Q: A potential difference of 3.12 nV is set up across a 2.31 cm length of copper wire that has a radius…

A: Potential difference or voltage is Length of copper wire is Radius of wire is Time is Resistivity of…

Q: Two conductors are made of the same material and have the same length. Conductor 1 is a solid wire…

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Q: Q/Determine the current through (R4) in figure below, if Vs= 50 v. 330 n 560 0 R4 560 1 330

A: Given :  Resistances : →R1=560 Ω→R2=330 Ω→R3=330 Ω→R4=560 Ω Voltage : →Vs=50 V

Q: A copper wire has a cross section of 20 mm². It carries a current" = 0.324. The density of charge…

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Q: in an ionic solution, a current consists of Ca²+ ions (of charge +2e) and Clions (of charge -e)…

A: Number of  Cl- ions going from A to B in time "t"  is…

Q: What is the steady-state current I, in units of Ampere, (steady-state current= current when you wait…

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Q: Current and Resistance Problem 9:   An extension cord that has a length of 9.65m is made from wire…

A: Please see the attached image for the solution.  If there are queries or if the image is not…

Q: 1. An unknown alloy is subjected to an electric field of 25 V/m, and has a current density of 1.45 ×…

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Q: What is the resistance (in units of Q) of a wire made of a material with a resistivity of 3.2 × 10-8…

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Q: A 14 gauge copper wire of diameter 1.628 mm carries a current of 10.5 mA. (ρcopper=1.72×10−8Ω⋅m.)…

A: Write the given values with the suitable variables. d=1.628 mm=1.628×10-3 mI=10.5 mA=10.5×10-3…

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A: Part 1: The Power as, P=VI

Q: At 20°C, a 7.5 m long copper wire has a cross-sectional diameter of 1 mm. If 15 A of current flow…

A: temperature, T=20 o C length of copper wire, l=7.5 m cross-sectional area, A=1 mm= 1x (10-3 m)2 = 1…

Q: A copper wire with a circular cross-section has a mass of 1.20 g and a resistance of 0.590 2. At…

A: Given: Mass of wire is m=1.20 g Resistance of wire is R=0.590 Ω At temperature T=20°C, resistivity…

Q: A current of 1 A flows through a copper wire. Number of electrons which will pass a given point in…

A: Given,current i = 1Awe have to find the no of electrons that pass through a given point in one…

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Q: A conductor bar (0=5.8*107 S/m) of square cross section (DxD) has a circular bored along its length…

A: Answer              C. 38678.82

Q: A long wire with a radius of 0.450 cm carries a current. The potential difference across a 3.10 m…

A: The radius of the long wire is r= 0.450 cm= 0.45x10-2 m. The length of the wire section is L = 3.10…

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A: Basic problem from electronics. Please have a good look

Q: A block in the shape of a rectangular solid has a cross-sectional area of 4.91 cm? across Its width,…

A: Given: Area, A=4.91cm2=4.91×10-4m2Length, L=12.2cm=12.2×10-2mResistance, R=1020ΩConcentration of…

Q: How much current flows through a 69.0-m length of copper wire with radius 6.9 mm if it is connected…

A: Write the given values with the suitable variables. L=69 mr=6.9 mm=6.9×10-3 mV=10 Vρ=1.68×10-8 Ω m…

Q: E. The conductive tissues of the upper leg can be modeled as a 40-cm-long, 12-cm-diameter cylinder…

A: Solution:-Given thatLength (L)=40 cm=0.4 mdiameter (d)=12 cm=0.12 mResistivity of muscle=13…

Q: 3. Look up tabulated conductivities (or resistivities) of copper, silver, and aluminum at 20 °C and…

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Q: Find the resistance between the inner and the outer curved surfaces of the block shown below, where…

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Resistivity

Resistivity is a characteristic property of the conductor’s material that measures the extent to which the material opposes the flow of current. It is denoted by the Greek letter “rho”. Electrical resistivity, also known as specific resistance, depends on the nature of the material of the conductor and is unaffected by its dimensions.