
Problem 7 A 46.0-g sample of a conducting material is all that is available. The resistivity...
A 58.8g sample of a conducting material is all that is available. The resistivity of the material is measured to be 1.13E-7Ω·m and the density is 7.33g/cm3. The material is to be shaped into a solid cylindrical wire that has a total resistance of 1.70Ω. What length is required? What must be the diameter of the wire?
#4 a.) Resitivity and Resistance A homogeneous metal wire is comprised of a conducting material witha resistivity of 1.55 x 10-7 ? . m. If the wire has a radius of 0.250 millimeters and is 1.25 meters in length, what is the resistance of the wire? A. 0.754 ? B. 0.988 ? C. 1.21 ? D. 1.50 ? b.) Resistivity and Conductivity In 4a, what is the conductivity of the wire? A, 3.25 × 106 ?-1m-1 B. 4.62 x 106...
A rectangular loop made of a material with a measured resistivity 13 μΩcm has a height 59 cm and a width 4.3 cm and a cross-sectional diameter of 1.2 mm. The wire moves with a speed 1.6 m/s parallel its width and perpendicular a magnetic field of strength 43 mT that it enters. (a) What is the magnitude of the voltage induced into the wire? mV (b) What is the resistance of the wire? Ω (c) What is the magnitude...
Learning Goal: Examine the dependence of resistivity and resistance of a wire on temperature and how it affects the potential difference across the terminals of the wire. Introduction: A current of 65 milli-amperes (mA) flows through a wire of length L= 1.7 meters long and diameter of d= 1.15 millimeters at a temperature of T0= 20 °C; the wire's resistivity at this temperature is ρ0= 5.33×10−8 Ω ∙ m. The temperature coefficient of resistivity of the material is α= 4.6×10−3/C°....
A cylindrical tungsten filament 15.0 cm long with a diameter of 1.10 mm is to be used in a machine for which the temperature will range from room temperature (20 ∘C) up to 120 ∘C. It will carry a current of 13.5 A at all temperatures ( Resistivity of tungsten at 20 ∘C is 5.25×10−8Ω⋅m , the temperature coefficient of resistivity at 20 ∘Cis 0.0045 ∘C−1 ) Part B What will be its resistance with that field? Express your answer...
please do all parts a,b,c,d,e,f and g
A wire is made of Tungsten with resistivity of 5.6 x 10-8 (0.m), length of 120 (m) and circular cross section area, also it has a resistance of 300 (0). What is the radius of the wire? BY What is the conductivity of this wire? We connect two ends of this wire to a battery and a current density of 0.002 (A/m”) start flowing in the circuit, what is the voltage of the...
2) The number density of conduction electrons in silver is 5.86 x 1028 m-3. independent of temperature. If a cylindrical wire of length L and cross-sectional area A were made of silver its electrical resistance would be given by R= ρ L A where ρ is the resistivity of the material measured in Ω−m. The resistivity can also be shown to be related to microscopic properties of the metal such as the number density of conduction electrons, the mass and...
-A sample of kerosene weighs 36.4 g. Its volume was measured to be 45.6 mL. What is the density of kerosene? -Acetone, the solvent in some nail polish removers, has a density of 0.791 g/mL. What is the volume of 16.4 g of acetone? -A graduated cylinder was filled with water to the 19.1 mL mark and weighed on a balance. Its mass was 34.16 g. An object made of silver was placed in the cylinder and completely submerged in...
Problem 5: A 5 cm long wire is in a uniform magnetic field of 4T, so that current in the wire is perpendicular to the magnetic field. The wire is connected to a 10 ohm resistor in series, so that the resistance of the wire is negligible. The wire and resister are then connected in series to a charged 1500mF capacitor at 50 kV. A: What is the current through the wire as function of time, with t-0 being when...
18] #. Match the name below with the device at the right that it represents. I. Et Il Resistance. ideal emf (8) device. Capacitance Real battery IV. [12] #2. Circle all the TRUE statements below. a) The Loop Rule is simply a statement of Conservation of Energy in an electrical circuit. b) The Junction Rule is simply a statement of Conservation of Electric Charge in an electrical circuit. e) When measuring the electric potential difference across a component in an...