To what temperature must you raise a silver wire (a = 0.0038), originally at 20.0°C, to triple its resistance, neglecting any changes in dimensions? (You can assume that resistivity varies with temperature linearly) 314.12 °C 608.24 °C 546.32 °C 283.16 °C

Q: 1). Compare the heat loss between a standard double pane window 0.9 m by 0.47 m hat has a gap filled…

A: This question can be easily solved by applying the basic concept of heat conduction .

Q: What is Maxwell's corkscrew rule? For what purpose is it used?

A: Maxwell’s corkscrew rule states that, if we can imagine a corkscrew driving in the direction of…

Q: You are working as a letter sorter in a U.S Post Office. Postal regulations require that employees'…

A:

Q: An eagle is flying horizontally at a speed of 8.35 m/s when the fish in her talons wiggles loose and…

A: 8. GivenSpeed of eagle in horizontal direction, vx=8.35 m/sDepth of fall into lake, s=8.93 m

Q: Why does elevator screen signals in the space? And how did they solve the problem.

A: The elevators are made of reinforced steel which acts as a Faraday cage and blocks the signals from…

Q: How do duality concepts impact our understanding of electric and magnetic fields in electromagnetic…

A:

Q: IS THIS MATHEMATICALLY ALLOWED? Fgsmg RESISTIVE FORLE: Fr= Kmv2 F= Fy-Fr mg-kmv2 ニ =g-kvz dr こ dx

A: As mass is constant and until mass is not equal to zero it is mathematically correct to omit 'm'…

Q: kg mass starts from rest at point A and moves along the x-axis subject to the potential energy shown…

A: Given: Mass of object (m) = 2.3 kg.

Q: 3. Given A = 2ax + 4ay and B = 6ay - 4az, find the smaller angle between them using (a) the cross…

A: Solution:-Given thatA=2ax+4ayB=6ay-4az

Q: Why do astronauts use radios while talking to one another in outer space?

A: Astronauts use radios while talking to one another in outer space.

Q: 2. (Young, et al., Sears and Zemansky's University Physics: with Modern Physics 13th Ed) The blood…

A:

Q: What is the average power expended to accelerate a bullet of 15grams mass to a speed of 900 m/sec in…

A: Power is the rate of doing work.P=W∆t...(1) We have work done defined as W=F.S,.....(2) force…

Q: Derive Maxwell's third equation

A:

Q: Fluorescent lights tend to emit less of what color?

A: A Fluorescent tube is a low pressure mercury vapour gas discharge lamb that used the property of…

Q: When an electron moves from n-region to p-region, what is generated in the two region

A: To find the electrons moves from n region to p region

Q: (a) Calculate the force (in N) the woman in the figure below exerts to do a push-up at constant…

A: Given that: Mass, m=53 kg

Q: The mass difference between two isotopes is sometimes just a neutron mass. The spectrometer should…

A:

Q: what is working principle and the applications of Van Der Graaf in electromagnetic? (please state it…

A: Van De Graaff generator consist of the large metal sphere and an insulating belt through which…

Q: waves

A: Electromagnetic wave waves are a propagating pair of electric and magnetic field components, and the…

Q: what's the meaning of the i symbol?

A: In general  a vector is  represented  as      A =Axi^ +Aýj^ +Aźk^  i^ =direction along x axis  j^ =…

Q: Water Diamond A rectangular diamond block lies submerged at the bottom of a tank of water. A light…

A:

Q: Two vectors are shown in the figure. The x-direction is horizontal, the y-direction is vertical, and…

A: From figure we have  Ax =- 4 as (4 division along negative x axis ) Ay = 6 ( 6 division along + y…

Q: 3. Consider that immediately after sunset the surface of the Earth is at a temperature of 20° C and…

A:

Q: and

A: Explanation : The Fourier Transform is a tool that breaks a waveform (a function or signal) into an…

Q: Distinguish visible light from the electromagneticspectrum.

A: Visible light: Visible is a form of electromagnetic radiation, other electromagnetic radiations are…

Q: Give me a good introduction to a Spectrophotometer ??

A: Answer:-  Spectrophotometer is an instrument that measure the amount of light passing through a…

Q: We know the answer is 5 and 6 but don’t understand why

A: Air will not be able to penetrate a closed pipe end. Air molecules present at the very end are…

Q: what occurs when outer electrons that buzz about the atomic nucleus encounter electromagetic waves?

A: When an electromagnetic wave is incident on the outermost electron or loosely bound electron of an…

Q: How fast would light travel through a material with a dielectric constant of 6 and a relative…

A:

Q: 1. For resistors in parallel, determine the relationship between the current supplied by the power…

A:

Q: I h a A brass ring with a right-angled triangular cross section encloses an infinitely long straight…

A: Given data Current  I=30 Aa=0.55 mh=0.13 mb=0.22 m

Q: 2. An infinitely long, cylindrical, insulating shell of inner radius a and outer radius b has a…

A: In the given question we have two charge distributions one is along the axis of cylinder and another…

Q: when the frequency was increased, what happened to the wavelength?

A:

Q: QUESTION 8 An eagle is flying horizontally at a speed of 8.35 m/s when the fish in her talons…

A: We will use equation of motion to calculate the vertical velocity of fish .

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.