Answered: Explain how each of these things relate…

Science

Physics

Explain how each of these things relate to Lenz's law. a. microphone b. credit card reader c. AC generators

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter22: Electric Current

Section22.2: Using Electric Energy

Problem 41SSC

See similar textbooks

Similar questions

Name two applications for superconductivity listed in this section and explain how superconductivity is used in the application. Can you think of a use for superconductivity that is not listed?
Integrated Concepts (a) What is the average power output of a heart defibrillator that dissipates 400 J of energy in 10.0 ms? (b) Considering the high-power output, why doesn’t the defibrillator produce serious burns?
Describe one promising explanation for how thunderclouds become electrified, that is, acquire a charge separation that often leads to cloud-to-ground lightning strikes.
Are you relatively safe from lightning inside an automobile? Give two reasons.
. All of the electrical outlets in a room are connected in a single parallel circuit (Figure 7.38). The circuit is equipped with a 20-A fuse, and the voltage is 120 V. (a) What is the maximum total power that can be supplied by the outlets without blowing the fuse? (b) How many 1,200-W appliances can be plugged into the sockets without blowing the fuse?
Construct Your Own Problem Consider a battery used to supply energy to a cellular phone. Construct a problem in which you determine the energy that must be supplied by the battery, and then calculate the amount of charge it must be able to move in order to supply this energy. Among the things to be considered are the energy needs and battery voltage. You may need to look ahead to interpret manufacturer’s battery ratings in ampere hours as energy in joules.
(Indicates a review question, which means it requires only a basic understanding of the material to answer. Questions without this designation typically require integrating or extending the concepts presented thus far.) . Six resistors, all having the same temperatures and compositions, are each attached to a battery with voltage V to form a simple circuit. The resistors have different lengths, l, but the same diameters. Rank the circuits according to the current that flows through the resistor from smallest to greatest. If two (or more) circuits have the same current flowing, give them the same ranking. Explain the rationale you used to establish your rankings. Circuit 1: l = 2 cm; V = 3 V Circuit 2: l = 2 cm; V = 6 V Circuit 3: l = 1 cm; V = 3 V Circuit 4: l = 1 cm; V = 6 V Circuit 5: l = 3cm; V = 2 V Circuit 6: l = 3cm; V = 6 V
is a problem. This can mean an increase n Feeders are the part of the electrical system that connects the branc When tabulating materials, take special note of long runs of raceway or cable 4. to the electrical service equipment. motors a. b. busbars C. raceways d. panelboards Conductors to be installed in raceways may be spliced at the raceway if the cover of the raceway is removable 5. junction boxes panelboards conduits a. b. C. d. modular partitions 6. and determine whether conductor and/or raceway size. ampacity single-phase supply voltage drop wiring a. b. С. d. In a commercial building, an allowance of the installation of telephone equipment to provide the power required to operate the special switching equipment for the telephones used by tenants. 7. volt-amperes is made for a. 600 b. 800 1000 с. d. 2000 8. Motors marked with Insulation Class B are suitable for use in ambient temperatures of up to 105°C 130°C a. b. C. d. 155°C 180°C 30
What is the Sl unit of electric current? O a. Volt (V) O b. Candela O c. Mole O d. Ampere (A)
1. Write Ohm’s Law. 2. Can one be shocked by touching a wire carrying a very large current with a low voltage source?Why? 3. Interpret the significance of the shape and the y-intercept of the curve .
Explain in not more or less than 5 sentences. 1. What happens if there is potential difference between two points in a circuit? 2. State Kirchhoff’ Voltage Law.
5 V 1. For the circuit below, the total current drawn by the circuit is 0.40 A. + a. What is the voltage (in V) across each light bulb? (3) b. Determine the current (in A) in each light (3) bulb. c. What is the equivalent resistance (in 2) of the two branches in parallel? (2) d. What is the total resistance (in 2) of the circuit? (2) R₁ = 7 Ω R₂ = 90 R3 = 130