A cylindrical wire has length 60 cm, diameter 9.0 mm, and resistivity 3.0 x 10-4 2m....
10, A cylindrical copper wire heater (resistivity of 1.7x10" Ωm) has a radius of 0.5 mm and a length of 10 m. What is the current on this wire when it is connected to a voltage source of 120 V? (a) (b) (c) (d) 2.8 A 65 A 52 A 124 A-, ' = 0,2302 天心ー。ソー 520A. 1.120 11. What is the equivalent resistance of the circuit between the points A & B? 2 6 2Ω (d) 9Ω 3Ω 12....
Chapter 26, Problem 064 A cylindrical resistor of radius 2.7 mm and length 3.0 cm is made of material that has a resistivity of 2.8 x 10-5 2.m. What are (a) the magnitude of the current density and (b) the potential difference when the energy dissipation rate in the resistor is 1.0 W? (a) Number Units (b) Number Units SHOW HINT
5.0 4 A 5.0-cm x 10.0-cm rectangular loop made of 3.0-mm-diameter copper wire (resisitivity 1.7*10-822*m) is placed next to a long, straight wire that carries a 5.0-A current (see figure). The distance initially separating the loop and the straight wire is 30 cm. 30 cm The loop then begins to move away from the straight wire, at a constant speed of 7.5 cm/s. 5.0 cm Determine the average magnitude and direction of the current induced inside the loop during the...
Marvin uses a long copper wire with resistivity 1.68 x 10-8. m and diameter 1.00 x 10-3 m to create a solenoid that has a 3.00 cm radius Part a Calculate the total resistance if Marvin uses 14.2 meters of wire to create the solenoid. Enter answer here 0 of 10 attempts used CHECK ANSWER Part b Calculate how many turns are in the solenoid. Enter answer here 0 of 10 attempts used CHECK ANSWER Part c A 3.00 Volt...
A number 12 copper wire has a diameter of 2.053 mm. Calculate the resistance of a 40.0 m long piece of such wire. (Use 1.72x 10-8 2m for the resistivity of copper.) Submit Answer Tries 0/99 For safety, the National Electrical Code limits the allowable amount of current which such a wire may carry. When used in indoor wiring, the limit is 20.0 A for rubber insulated wire of that size. How much power would be dissipated in the wire...
11. An aluminum wire with a square cross-section 2 mm on a side is carrying a current of 1.5 amps. Aluminum has a resistivity of 2.69 x 10* ohm-cm and an atormic volume of 10 cc/mol. Assuming aluminum has three free electrons per atom, calculate the (a) Hall coeffcient, (b) electron mobility, (c) drift velocity, d) collision time. (e) electric field, (f) power dissipated (heat generated) per cm length, and (g) the Hall voltage across the wire in a transverse...
PHY1520 Final Review Problems 1) The current density in a cylindrical wire of radius R = 3.0 mm is uniform across the cross section of the wire and is J = 3.0 × 106A/m2, (a) What is the current through the outer portion of the wire between radial distances R/2 and R (b) What is the current through the entire cross section of the wire? 2) A conducting loop of radius 1.50 cm and resistance 8 x 10-6Ω is perpendicular...
A wire whose resistivity, p=4.92 x 10-8 Ωm has a length L = 26 m and a diameter of d = 6.1 x 10-4 m. What is the resistance of this wire in ohms, a? Please round your answer to one decimal place.
3. An electric circuit consists of a battery, three 2 12 resistors and a 10 A fuse. 12V 2Ω Calculate the total current out of the battery. If the current through the fuse exceeds 10 A, assume that it melts and opens the circuit. a) Determine the amount of charge that flows between the top two resistors at point B during a period of 5 seconds. b) c) Assume that the potential on the batteries positive terminal to be 12...
answer all multiple choice please 1 12. A tiny spherical water drop has a charge of 3.00 X 10'15C. How many excess electrons are on the drop? b.2.25X10c. 1.6X 01 d. 1.87 X 10 13. A wire contains a steady eurrent of 0.75 A. The charge that passes a cross section in 3 s is: e. 3.35 C d, 225 С b, 6.4 x 10-1, С с.1.55 С a32x10", С 14. An electric field with a magnitude of 5 X...