Inquiry into Physics
8th Edition
ISBN: 9781337515863
Author: Ostdiek
Publisher: Cengage
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Question
Chapter 7, Problem 6C
To determine
To Sketch:The graph of the voltage versus current for diode.
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A ceramic capacitor has a value of C=10,000 pF. The capacitor consists of a dielectric disc between two paralell metal disc plates. The dielectric disc has a relative permittivity of 40 and a conductivity of 10-12 S/m. The diameter of the disc plates is 1 cm. The voltage across the plates is 100 V. Find the leakage current density in the dielectric in micro Amperes per square meter. Round off your answer to one decimal.
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A)he pn junction capacitance C is
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B)At room temperature a semiconductor material is
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Chapter 7 Solutions
Inquiry into Physics
Ch. 7 - Describe one promising explanation for how...Ch. 7 - Loud thunder claps frequently accompany lightning...Ch. 7 - What does the term fibrillation mean in connection...Ch. 7 - Prob. 1PIPCh. 7 - Prob. 2PIPCh. 7 - Prob. 1MIOCh. 7 - Prob. 2MIOCh. 7 - Prob. 1QCh. 7 - Prob. 2QCh. 7 - Prob. 3Q
Ch. 7 - Prob. 4QCh. 7 - Prob. 5QCh. 7 - (Indicates a review question, which means it...Ch. 7 - Prob. 7QCh. 7 - Prob. 8QCh. 7 - Prob. 9QCh. 7 - Prob. 10QCh. 7 - Prob. 11QCh. 7 - Prob. 12QCh. 7 - (Indicates a review question, which means it...Ch. 7 - Prob. 14QCh. 7 - (Indicates a review question, which means it...Ch. 7 - Prob. 16QCh. 7 - (Indicates a review question, which means it...Ch. 7 - (Indicates a review question, which means it...Ch. 7 - Prob. 19QCh. 7 - (Indicates a review question, which means it...Ch. 7 - (Indicates a review question, which means it...Ch. 7 - (Indicates a review question, which means it...Ch. 7 - (Indicates a review question, which means it...Ch. 7 - Prob. 24QCh. 7 - Prob. 25QCh. 7 - (Indicates a review question, which means it...Ch. 7 - (Indicates a review question, which means it...Ch. 7 - (Indicates a review question, which means it...Ch. 7 - Prob. 29QCh. 7 - (Indicates a review question, which means it...Ch. 7 - (Indicates a review question, which means it...Ch. 7 - Prob. 32QCh. 7 - Prob. 33QCh. 7 - Prob. 34QCh. 7 - (Indicates a review question, which means it...Ch. 7 - Two charged particles exert an electric force of...Ch. 7 - What would the separation between two identical...Ch. 7 - A particle having a positive charge of C...Ch. 7 - During 30 seconds of use, 250 C of charge flow...Ch. 7 - A lightning stroke lasts 0.05 s and involves a...Ch. 7 - A current of 0.7 A goes through an electric motor...Ch. 7 - A calculator draws a current of 0.0001 A for 5...Ch. 7 - Prob. 8PCh. 7 - A 120-V circuit in a house is equipped with a 20-A...Ch. 7 - . The resistance of each brake lightbulb on an...Ch. 7 - . The lightbulb used in a computer projector has a...Ch. 7 - Prob. 12PCh. 7 - Prob. 13PCh. 7 - Prob. 14PCh. 7 - . An electric eel can generate a 400-V, 0.5-A...Ch. 7 - . An electric train operates on 750 V. What is its...Ch. 7 - . All of the electrical outlets in a room are...Ch. 7 - . Your cell phone typically consumes about 400 mW...Ch. 7 - . A car’s headlight consumes 40 W when on low beam...Ch. 7 - . Find the current that flows in a 40-W bulb used...Ch. 7 - . An electric clothes dryer is rated at 4,000 W....Ch. 7 - . A clock consumes 2 W of electrical power. How...Ch. 7 - . Which costs more, running a 1,200-W hair dryer...Ch. 7 - . A representative lightning strike is caused by a...Ch. 7 - Prob. 25PCh. 7 - . A certain electric motor draws a current of 10 A...Ch. 7 - . The generator at a large power plant has an...Ch. 7 - . A lightbulb is rated at 60 W when connected to...Ch. 7 - . About 40,000 J of energy is stored in a typical...Ch. 7 - . An electric car is being designed to have an...Ch. 7 - Prob. 31PCh. 7 - Compute the electric force acting between the...Ch. 7 - Use the result from Challenge land the equation...Ch. 7 - Prob. 3CCh. 7 - Using your understanding of the nature of internal...Ch. 7 - The current that flows through an incandescent...Ch. 7 - Prob. 6CCh. 7 - Imagine a company offering a line of hair dryers...Ch. 7 - Prob. 8CCh. 7 - Combine Ohm’s law and the equation for power...Ch. 7 - A defibrillator sends approximately 0.1 C of...
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- Resistors are commonly rated at 18W,14W,12W ,1 W and 2 W for use in electrical circuits. If a current of1 = 2.00 A is accidentally passed through a R=1.00 resistor rated at 1 W, what would be the most probable outcome? Is there anything that can be done to prevent such an accident?arrow_forwardCheck Your Understanding Verify that /V and e0/d have the same physical units.arrow_forwardA battery with an internal resistance of 10.0 produces an open circuit voltage of 12.0 V. A variable load resistance with a range from 0 to 30.0 is connected across the battery. (Note: A battery has a resistance that depends on the condition of its chemicals and that increases as the battery ages. This internal resistance can be represented in a simple circuit diagram as a resistor in series with the battery.) (a) Graph the power dissipated in the load resistor as a function of the load resistance. (b) With your graph, demonstrate the following important theorem: The power delivered to a load is a maximum if the load resistance equals the internal resistance of the source.arrow_forward
- A close analogy exists between the flow of energy by heat because of a temperature difference (see Section 19.6) and the flow of electric charge because of a potential difference. In a metal, energy dQ and electrical charge dq are both transported by free electrons. Consequently, a good electrical conductor is usually a good thermal conductor as well. Consider a thin conducting slab of thickness dx, area A, and electrical conductivity , with a potential difference dV between opposite faces. (a) Show that the current I = dq/dt is given by the equation on the left: ChargeconductionThermalconductiondqdt=A|dVdx|dQdt=kA|dTdx| In the analogous thermal conduction equation on the right (Eq. 19.17), the rate dQ/dt of energy flow by heat (in SI units of joules per second) is due to a temperature gradient dT/dx in a material of thermal conductivity k. (b) State analogous rules relating the direction of the electric current to the change in potential and relating the direction of energy flow to the change in temperature.arrow_forwardWhen the current in the portion of the circuit shown in Figure P32.65 is 2.00 A anti increases at a rate of 0.500 A/s, the measured voltage is Vab = 9.00 V. When the current is 2.00 A and decreases at the rate of 0.500 A/s. the measured voltage is Vab = 5.00 V. Calculate the values of (a) I. and (b) Rarrow_forwardCheck Your Understanding Copper wires use routinely used for extension cords and house wiring for several reasons. Copper has the highest electrical conductivity rating, and therefore the lowest resistivity rating, of all nonprecious metals. Also important is the tensile strength, where the tensile strength is a measure of the force required to pull an object to the point where it breaks. The tensile strength of a material is the maximumamount of tensile stress it can take before breaking. Copper has a high tensile strength, 2108Nm2 A thirdimportant characteristic is ductility. Ductility is a measure of a material’s ability to be drawn into wires and a measure of the flexibility of the material, and copper has a high ductility. Summarizing, for a conductor to be a suitable candidate for making wire, there are at least three important characteristics: low resistivity, high tensile strength, and high ductility. What other materials are used for wiring and what are the advantages and disadvantages?arrow_forward
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