Part A You need to design a 0.80 A fuse that "blows" if the current exceeds 0.80 A. The fuse material in your stockroom melts at a current density of 500 A/cm?. What diameter wire of this material will do the job? Express your answer to two significant figures and include the appropriate units. HA D = Value Units Submit Request Answer Provide Feedback

Q: The conductive tissues of the upper leg can be modeled as a 35-cm-long, 11-cm-diameter cylinder of…

A: Solution:-Given thatlength (L)=35 cm=0.35 mdiameter (d)=11 cm=0.11 mresistivity of muscle=13…

Q: Part Á A 13-cm-long nichrome wire is connected across the terminals of a 1.5 V battery. What is the…

A: Given,length of the nichrome wire, L = 13 cmpotential across the battery terminals, V = 15 V

Q: The terminals of a 0.70 V watch battery are connected by a 60.0-m-long gold wire with a diameter of…

A: Voltage ( V ) = 0.70 V Length of the wire ( L ) = 60 mDiameter of the wire ( d ) = 0.100 mm So ,…

Q: What electric field strength is needed to create a 4.0 A current in a 1.6-mm-diameter iron wire?

A: Current, I = 4.0 A Radius of the wire, r = 0.0008 m

Q: A hollow copper wire with an inner diameter of 1.0 mm and an outer diameter of 2.3 mm carries a…

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Q: A circuit calls for a 0.200 mm -diameter copper wire to be stretched between two points. You don't…

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Q: Part A In an integrated circuit, the current density in a 2.5-um-thick x 70-um-wide gold film is…

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Q: In an integrated circuit, the current density in a 2.5-μm-thick x 71-μm-wide gold film is 7.5x105…

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Q: The starter motor of a car engine draws a current of 190 A from the battery. The copper wire to the…

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Q: Calculate the current through each resistor in the figure if each resistance R=1.38 kn and V= 12.0 V…

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Q: Part A You need to design a 1.4 A fuse that "blows" if the current exceeds 1.4 A. The fuse material…

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Q: When running on its 11.4 VV battery, a laptop computer uses 8.3 WW. The computer can run on battery…

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Q: What is the resistance of a 6.9-m length of copper wire 1.5 mm in diameter? The resistivity of…

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Q: Part A Compute the equivalent resistance of the network in the figure (Figure 1). The battery has…

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Q: Part A What is the blood resistivity if a 8.8 V potential difference causes a 220 μA current through…

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Q: Household wing ofan uses 25-m-diameter copper wis Thes rather long as they snake fuse box to the…

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Q: Explain your reasoning in short concise sentences. a. Why can't we just heat a wire to produce a…

A: To determine: Give the reasoning for the following, a) Wire be heated to create current b. Two…

Q: A charge of Q = 1.1 C passes through a wire every t = 1.5 s. a.Input an expression for the current,…

A: Given Data: The magnitude of a charge is, Q=1.1 C The time required is, t=1.5 s   Part (a): The…

Q: 2. A person with body resistance between his hands of 10 ka accidentally grasps the terminals of a…

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Q: Electrons flow through a 1.5-mm-diameter aluminum wire at 1.0×10-4 m/s. How many electrons move…

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Q: IP A bird lands on a bare copper wire carrying a current of 40 A The wire is 8 gauge, which means…

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Q: ▼ Part A For what electric field strength would the current in a 1.7-mm-diameter nichrome wire be…

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Q: B. For the following nominal value or range of value of a resistor, determine its color code: a.…

A: The color code for the following resistor values are : 1.2 kΩ±10% Brown Red Red Silver…

Q: Part A The starter motor of a car engine draws a current of 200 A from the battery. The copper wire…

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Q: Part A Describe how to use this galvanometer to make an ammeter to read currents up to 35 A. A…

A: A galvanometer is an instrument that can detect and measure small amounts of current in an…

Q: Help with physics problem

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Q: A. Using the color chart above, decode the value of the following resistors and indicate the…

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Q: Household wiring often uses 2.0-mm-diameter copper wires. The wires can get rather long as they…

A: Calculate the cross-sectional area of the wire. A=π4d2A=π4(2 mm×1 m1000 mm)2A=3.14×10−6 m2

Q: How many electrons strike the screen each second? 2.94-104 electrons The electron beam inside a…

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Q: For a science experiment you need to electroplate a 110-nm-thick zinc coating onto both sides of a…

A: Length and breadth of the plate is 1cm=0.01m thickness of the plate =110 nm=110×10-9 m So, volume…

Q: A sculptor has asked you to help electroplate gold onto a brass statue. You know that the charge…

A: Given:- A sculptor has asked you to help electroplate gold onto a brass statue. You know that the…

Q: A capacitor is discharged through a 20.0 2 resistor. The discharge current decreases to 25.0% of its…

A: Solution attached in the photo

Q: A circuit calls for a 0.500 mm -diameter copper wire to be stretched between two points. You don't…

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Q: of 4.50 V You apply a potential difference between the ends of a wire that is 2.50 m in length and…

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Q: The resistance of a certain copper wire is 0.7 2. Part A Determine the resistance of a tungsten wire…

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Q: Let's approximate the cloud and the ground by two infinitely-large uniformly- charged plates, as…

A: Solution has been given below..

Q: A 0.870-mm-diameter silver wire carries a 30.0 mA current. F ▼ Part A What is the electric field in…

A: Given data: The diameter d=0.870 mm=0.870×10-3 m   The current I=30.0 mA=30×10-3 A

Q: The electron drift speed is 2.2x10-4 m/s in a metal with a mean free time between collisions of…

A: Write the expression for the electric field strength. Here, v is the drift speed, m is the mass of…

Q: A 18-cm-long nichrome wire is connected across the terminals of a 1.5 V battery. ▼ J= 5.6×106 A m²…

A: We know,  J = I/A ; or, A = I/J J is current density I is current A = (πd2)/4  is cross section of…

Q: Part A A length of aluminum wire is connected to a precision 10.00-V power supply, and a current of…

A: Solution:-

Q: Part A A standard 100 W (120 V) lightbulb contains a 9.40 cm -long tungsten filament. The…

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Q: Part A The starter motor of a car engine draws a current of 200 A from the battery. The copper wire…

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Q: A. Using the color chart above, decode the value of the following resistors and indicate the…

A: In a 4 band code for a resistor, the parameters are as follows The first band and the second band of…

Q: A 4600 resistor is connected across a charged 0.850 nF capacitor. The initial current through the…

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Q: A capacitor is charged to 5.0×10-4 C, then discharged by connecting a wire between the two plates.…

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Q: The electron drift speed is 1.9x10-4 m/s in a metal with a mean free time between collisions of…

A: Given : electron drift speed, vd=1.9×10-4 m/s mean free time between collision, ς=5.6×10-14 s charge…

Microscopic view of current

In physics, the term current is expressed as the rate of flow of electric charges across the area per unit time (I=q/t). It propagates along in the direction of the motion of positive charges. When the current is caused by the motion of electrons, the direction of the current is opposite to the flow.