The wires leading to and from a 0.12-mm-diameter lightbulb filament are 1.5 mm in diameter. The wire

Question:

The wires leading to and from a 0.12-mm-diameter lightbulb filament are 1.5 mm in diameter. The wire to the filament carries a current with a current density of 4.5 × 10⁵ A/m². What are

(a) The current

(b) The current density in the filament?

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Physics for Scientists and Engineers A Strategic Approach with Modern Physics

ISBN: 978-0133942651

4th edition

Authors: Randall D. Knight

See More Books

Question Posted: Nov 02, 2018 11:11 AM

See More Questions

A lightbulb filament has a resistance of 110 2. The bulb is plugged into a standard 120-V (rms) outlet, and emits 1.00% of the electric power delivered to it by electromagnetic radiation of frequency...
The current in a 100 watt lightbulb is 0.85 A. The filament inside the bulb is 0.25 mm in diameter. a. What is the current density in the filament? b. What is the electron current in the filament?
You are standing 2.5 m from a 150-W lightbulb. (a) If the pupil of your eye is a circle 5.0 mm in diameter, how much energy enters your eye per second? (Assume that 5.0% of the lightbulb's power is...
On your first day as a intern at Tri-Star Management Incorporated the CEO asks you to analyze the following information pertaining to two common stock investments, Tech.com Incorporated and Sam's...
You are working for the small accounting firm, CPA Plus, and your boss, Bradford Trask, wonders whether your company could produce podcasts for its clients without professional help. He doesn't know...
Anhydrite is a calcium sulfate mineral deposited when seawater evaporates. What is the solubility of calcium sulfate, in grams per liter? Table 17.1 gives the solubility product constant for calcium...
Stability of flow in torsional flow. Taylor determined the critical speed of rotation for flow between concentric cylinders with the inner cylinder rotating. The transition is characterized by a...
The cash records and bank statement for the month of July for Jim Incorporated are shown below. Additional information: a. The difference in the beginning balances in the companys records and the...
Use the Following metrics to perform the operation, if possible. A = F2-12 1 3 0 1 2 3 B 1 1 2 3 5 3-3 L0323 Find 2A-3B
Too Young, Inc., has a bond outstanding with a coupon rate of 7.3 percent and semiannual payments. The bond currently sells for $1,870 and matures in 20 years. The par value is $2,000. What is the...
The wire in Figure Q27.9 consists of two segments of different diameters but made from the same metal. The current in segment 1 is I 1 . a. Compare the currents in the two segments. That is, is I 2...
The current in a wire is doubled. What happens to (a) The current density, (b) The conduction-electron density, (c) The mean time between collisions, (d) The electron drift speed? Are each of these...
When a corporation issues bonds at a discount, is the discount recorded as income when the bonds are issued? Explain.
A time-series process of the form $y_{t}=\alpha+y_{t-1}+v_{t}, v_{t} \sim N\left(0, \sigma^{2} ight)$ can be rearranged as $y_{t}-y_{t-1}=$ $\Delta y_{t}=\alpha+v_{t}$. This shows that...
In a study of casino size (square feet) and revenue, the value of r = 0.445 is obtained. Find the value of r2. What does that value tell us?
Consider the $\operatorname{AR}(2)$ model $y_{t}=\delta+\theta_{1} y_{t-1}+\theta_{2} y_{t-2}+v_{t}$. Suppose that \[1-\theta_{1} z-\theta_{2} z^{2}=\left(1-c_{1} z ight)\left(1-c_{2} z ight)\]...
A $0.25-\mathrm{kg}$ cart is held at rest against a compressed spring as in Figure $5.8 a$ and then released. The cart's speed after it separates from the spring is \(2.5 \mathrm{~m} /...
The two cubes in Figure P6.40 have different inertias. The cubes are connected to each other by a spring, and a hammer strikes them in the two ways, $(a)$ and $(b)$, shown in the figure. Assuming...
A machine shop has three machines used in precision grinding of cam rollers. Three machinists are employed to grind rollers on the machines. In an experiment to determine whether there are...
Chapter 9 Stock Valuation at Ragan Engines Input area: Shares owned by each sibling Ragan EPS Dividend to each sibling Ragan ROE Ragan required return Blue Ribband Motors Corp. Bon Voyage Marine,...
Account for the observation that ethanol, C 2 H 5 OH, dissolves readily in water, but dimethyl ether, CH 3 OCH 3 , which has the same number and kinds of atoms, does not. . -- Ethanol Dimethyl...
At 10C, which is more concentrated: a saturated solution of sodium nitrate, NaNO 3 , or a saturated solution of sodium chloride, NaCl? (See Figure 16.20 .) NaNO3 180 160 140 120 LicI 100 80 60 KCI 40...
Why is rain or snow called precipitation?
1. Negative impact of blockchain technology on taxation in the accounting profession. 2.what are the factors that influence an organisations work practice and expectations of an accounting...
What do you think of modeling an entire culture on just six dimensions? Are there aspects of the culture that are not covered by these dimensions? What do you think of the mere concept of culture as...
A business organisation is a system. It consists of many subsystems, such as departments, divisions, process teams and other workgroups. Organisations are designed for the purpose of creating...

The wires leading to and from a 0.12-mm-diameter lightbulb filament are 1.5 mm in diameter. The wire

Question:

Step by Step Answer:

Visualize The current density J in a wire as given by Equation 2...View the full answer

Physics for Scientists and Engineers A Strategic Approach with Modern Physics

Students also viewed these Physics questions