Schaum's Outline of College Physics, Twelfth Edition (Schaum's Outlines)
12th Edition
ISBN: 9781259587399
Author: Eugene Hecht
Publisher: McGraw-Hill Education
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Chapter 27, Problem 22SP
To determine
The resistance of a boiler when a current of
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per meter. A Daniel cell of e.m.f. 1.08 V
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Chapter 27 Solutions
Schaum's Outline of College Physics, Twelfth Edition (Schaum's Outlines)
Ch. 27 - 11. If the current supplied to a resistor is...Ch. 27 - 12. A 12.0-V battery supplies 20.0 mA to a...Ch. 27 - 13. A length of wire has a certain current...Ch. 27 - 14. A 12.0-V battery is put across a 100-Ω...Ch. 27 - 15. A 12.0-V car battery supplies 15.0 A to a...Ch. 27 - 16. A resistive heater is labeled 1600 W/120 V....Ch. 27 - Prob. 17SPCh. 27 - 18. A spark of artificial 10.0-MV lightning had...Ch. 27 - Prob. 19SPCh. 27 - 20. An electric motor takes 15.0 A at 110 V....
Ch. 27 - 21. A current of 10 A exists in a line of 0.15 Ω...Ch. 27 - Prob. 22SPCh. 27 - 23. A 25.0-W, 120-V bulb has a cold resistance...Ch. 27 - 24. While carrying a current of 400 A, a...Ch. 27 - 25. How much power does a 60-W/120-V...Ch. 27 - Prob. 26SPCh. 27 - 27. A 10.0-Ω electric heater operates on a 110-V...Ch. 27 - 28. An electric motor, which has 95 percent...Ch. 27 - 29. An electric crane uses 8.0 A at 150 V to...Ch. 27 - Prob. 30SPCh. 27 - 31. Compute the cost per hour at 8.0 / kW • h of...Ch. 27 - 32. Power is transmitted at 80 kV between two...Ch. 27 - 33. A storage battery, of emf 6.4 V and internal...Ch. 27 - 34. A tank containing 200 kg of water was used...
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- 1. A) What is internal resistance of an automobile battery that has an emf of 9.0 V and terminal voltage of 20.0 V while a current of 8.5 A is charging it? B) Find electric power that is lost on internal resistancearrow_forwardNot a graded question. It is a research hypothesis. 1. A copper ros is 3 m long and 4 mm in diameter. Compute its resistance if the resistivity of the materials is 1.76 × 10-8 ohms-m 2. A piece of number 10 aluminum wire has a diameter of 2.59 mm. How many meters of number 10 aluminum wire is needed to give a resistance of 1 ohms? Aluminum has p of 2.8 × 10-8 ohms-m 3. Compute the resistance of a 190-m wire made of silver having a cross-sectional area of 0.55mm2. Silver has a resistivity of 1.6 × 10-8 ohms-marrow_forwardIf the 0.1-mm-diameter tungsten filament in a light bulb is to have a resistance of 0.25 2 at 20°C, how long should it be? The resistivity of tungsten is at 20°C is 5.6 x 10-8 22.m. L= 3.351 X 10 m No, that's not the correct answer.arrow_forward
- A long wire connected to the terminal of a 12.0 V battery has 6.4 x 1019 electrons passing a cross section of the wire each second. Calculate its resistance.arrow_forwardCURRENT AND RESISTANCE Problem 1. A piece of 1 4-gauge copper wire 0. 163cm in diameter is 1 4.0m long. (a) What is its resistance? (b) If a potential difference of 1.00 V is applied across the wire, what current flows in it? (c) What is the electric field in the wire? The resistivity of copper is 1.724-10¹8 Ohm-m. Problem 2. Ohm's Law and Kirchhoff's Law Given the circuit below, calculate the current in each resistor, the total resistance and the total voltage of the circuit. 40 02 15 Q2 www ww +24V 10 Q2 20 Ωarrow_forwardThe tungsten filament in an incandescent lamp has a resistance of 9.8 ohm at a room temperature of and a resistance of 132 ohm at normal operating temperature. Calculate the temperature of the heated filament. ∝20℃=0.0045/℃arrow_forward
- In household wiring, copper wire 2.05.mm in diameter is often used. Find the resistance of a 35.0 m long wire. Specific resistance of copper is 1.72× 10° 2-m. -8arrow_forwardWhat is the resistance (in units of 2) of a wire made of a material with a resistivity of 3.2 x 10-8.m, if its length is 49.1 m and its diameter is 0.50 mm? Solect ono:arrow_forwardCalculate the length of a certain metal wire of diameter 0.15mm is needed for the wire to have a resistance of 15ohm. The resistivity of this metal is 1.68x10-8 ohm.marrow_forward
- 20. A conductor of cross-sectional area A, length l, and resistivity ρ has resistance R. What is the new resistance if it is stretched to 2 times its original length while the area is quadrupled? Group of answer choices Two times the original resistance Four times the original resistance A quarter of the original resistance Half of the original resistancearrow_forwardThe large window air conditioner in Anita Breeze's room draws 11 amps of current. Théė unit runs for 8.0 hours during the course of a day. Determine the quantity of charge that passes through Anita's window AC during these 8.0 hours. What is the resistance of a 20.0-m-long piece of 12- gauge copper wire having a 2.05 mm diameter? (Resistivity of copper is 1.68 X 10-8 ohm meter)arrow_forward18. A certain lightbulb has a tungsten filament with a resistance of 19.0 Q when at 20.0°C and 140 N when hot. Assume the resistivity of tungsten varies linearly with temperature even over the large temperature range involved here. Find the temperature of the hot filament.arrow_forward
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