Introduction To Health Physics
5th Edition
ISBN: 9780071835275
Author: Johnson, Thomas E. (thomas Edward), Cember, Herman.
Publisher: Mcgraw-hill Education,
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Chapter 2, Problem 2.16P
A current of 25 mA flows through a 25-gauge wire, 0.0179 in. (17.9 mils) in diameter. If there are
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a current 2A flows in a copper wire over a length of 3 km and 1,1 mm.known copper conductivity is 5.8×10^7 A/V defined the voltage drop in the missing wires and electrical charge
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Chapter 2 Solutions
Introduction To Health Physics
Ch. 2 - Two blocks of mass 0.1 kg and 0.2 kg approch each...Ch. 2 - A bullet whose mass is 50 g travels at a velocity...Ch. 2 - Compute the mass of the Earth, assuming it to be a...Ch. 2 - An automobile weighing 2000 kg and going at a...Ch. 2 - A small electrically charged sphere of mass 0.1 g...Ch. 2 - A capacitor has a capacitance of 10F . How much...Ch. 2 - A small charged particle whose mass is 0.01 g...Ch. 2 - Prob. 2.8PCh. 2 - Prob. 2.9PCh. 2 - Prob. 2.10P
Ch. 2 - Prob. 2.11PCh. 2 - Prob. 2.12PCh. 2 - Prob. 2.13PCh. 2 - Prob. 2.14PCh. 2 - Prob. 2.15PCh. 2 - A current of 25 mA flows through a 25-gauge wire,...Ch. 2 - An electron starts at rest on the negative plate...Ch. 2 - Prob. 2.18PCh. 2 - Prob. 2.19PCh. 2 - Prob. 2.20PCh. 2 - Prob. 2.21PCh. 2 - Prob. 2.22PCh. 2 - Prob. 2.23PCh. 2 - (a) A 1000-MW(e) nuclear power plant operates at a...Ch. 2 - Prob. 2.25PCh. 2 - Prob. 2.26PCh. 2 - Prob. 2.27PCh. 2 - The specific heat of water in the English system...Ch. 2 - Prob. 2.29PCh. 2 - Prob. 2.30PCh. 2 - Prob. 2.31PCh. 2 - Prob. 2.32PCh. 2 - How many cubic meters of water must fall over a...Ch. 2 - (a) Calculate the speed of a 25-MeV proton. (b)...Ch. 2 - Prob. 2.35PCh. 2 - Prob. 2.36PCh. 2 - Calculate the speed of a (a) 0.5-MeV electron and...Ch. 2 - How much sub-butuminous coal (20,000 kJ/kg) would...Ch. 2 - Prob. 2.40PCh. 2 - How much oil (138,690 Btu/gal) would it take to...Ch. 2 - How much oil (138,690 Btu/gal) would it take to...Ch. 2 - Prob. 2.43PCh. 2 - Prob. 2.44PCh. 2 - Prob. 2.45PCh. 2 - Prob. 2.46PCh. 2 - Prob. 2.47PCh. 2 - Prob. 2.48PCh. 2 - Prob. 2.49P
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- A metal wire of cross-sectional area 2.00x10-6 m² and length 4.0 m has a current of 25.0 A uniformly distributed across that area. If the conductivity of the metal is, 5.9x107 (.m)-!, calculate the magnitude of the electric field, in V/m, along the wire?arrow_forwardA conductor has a cross-sectional area of 2.3x106m² and the number of free electrons per unit volume is 8.5 x1028 electron/m. When the current is 14.5 A, find the drift speed (in mm/s) of the electrons. Use the charge of the electron to be 1.6x1019 C.arrow_forward67. A metallic wire has a diameter of 4.12mm. When the current in the wire is 8.00A, the drift velocity is 5.40×10−5m/s. What is the density of free electrons in the metal? Express the answer numerically in m−3m−3 to two significant figures.arrow_forward
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- 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.arrow_forwardA current of I=1.1 A is passing through a conductor with cross-section area A=6.5x10^-4m^2. The charge carries in the conductor, electrons, have a number density n=6.1x10^27m^-3. Part (a) Express the drift velocity of electrons through I,A,n and the fundamental charge e. Part (b) calculate the miracle value of v, in m/s. arrow_forwardostro Imssb1.mutah.edu.jo/r A conductor has a cross-sectional area of 2.3x 10-6 m2 and the number of free electrons per unit volume is 8.5x 1028 electron/m. When the current is 9 A, find the drift speed (in mm/s) of the electrons. Use the charge of the electron to be 1.6x 10-19 Carrow_forward
- 1.9. A block of conductor has the dimensions Lo x 2Lo x 4Lo. As shown in the figure below, the same battery is connected across the conductor in three different configurations. Which configuration draws the smallest current from the battery? All configurations draw equal current. 21 Lo 4Lo 4LO (a) (b) (c) (d)arrow_forwardIron has a resistivity of 9.71×108 m at 20°C. What will the resistivity of Lead when then temperature is increased to 135°C. (Take a as 6.51×10³)arrow_forwardAn 18-gauge copper wire with a diameter of 3-mm carries a constant current of 1.2-A. The charge concentration in the wire is 8.5 x 1028 per cubic meter. Determine the current density in kA/m2.arrow_forward
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