An electrical cable of length l=12m consists of a copper wire of diameter D=0,3 cm, and resistivity p= 1,7. 10^(-8) , surrounded by a cylindrical layer of rubber insulation, thickness s= 0,10 cm. A potential difference of 6  volts is applied to the ends of this cable.    I)    Find the intensity of electric current in the cable.

Q: A worker applies a constant horizontal force of magnitude 97.81 N to a box with mass 2.18 kg resting…

A: Horizontal force applied to the box is Mass of box is Box is resting on the floor.Note:Find:Weight…

Q: samuel has is observing an object. you please determine the work that is done by F = 5i -2j+0k which…

A: Given,Force on the object is Initial point of the object is Final point of the object Displacement…

Q: Which table correctly displays the information provided within the problem below? A space shuttle is…

A:

Q: 2) Two identical metallic plates of area A=1m² are given charges Q=10mC and 2Q, respectively. The…

A: To determine the charge density at the outer surface.A=1 m2d=0.25 mQ1 =10 mCQ2 = 20 mC

Q: Car A is traveling at a constant speed VA = 126 km/h at a location where the speed limit is 100…

A:

Q: Suppose that a Ferris wheel with radius R = 25 m is rotating clockwise and that the point P at angle…

A: Given Data:Radius Angle Acceleration vector To Determine:The tangential acceleration of the Ferris…

Q: Two horizontal forces, and F₂, are acting on a box, but only is shown in the drawing. F can point…

A:

Q: Three objects with masses m1 = 6.2 kg, m2 = 14 kg, and m3 = 17 kg, respectively, are attached by…

A: Given:Mass of first object  is 6.2 kg.Mass of second object is 14 kg.Mass of third object is 17…

Q: 16) Two wires, W1 and W2, are produced from same material. It's known that r112. According to given…

A: “Since you have posted multiple questions, we will provide the solution only to the first question…

Q: Suppose a horse leans against a wall as in the figure below. (a) Fall 1.2 m CG W 0.35 m (b) 1.4 m…

A: A horse leans against a wall as in the figure below -

Q: Consider the wave shown in (Figure 1). Figure D (cm) LA 0.2 04 06 0.8 -3 6 3. -6 -1 (s) History…

A:

Q: A 25-cm-diameter cylinder that is 36 cm long contains 60 g of oxygen gas at 20°C. For general…

A: Given Data: The diameter of the cylinder    is 25 cmso, the radius (r)  is   Length of the cylinder…

Q: Find the components of each vector and find the magnitude and direction of the vector resulting from…

A:

Q: Which is the most accurate statement of Bernoulli's principle? a.Fast-moving air causes lower…

A: Here the given statement are as followsa. Fast-moving air causes lower pressureb. Lower Pressure…

Q: In a double-slit experiment the distance between the slits is 5.0mm and the slits are 1.0m from the…

A: Distance between slits is Distance between slits and screen is Wavelength of first light is…

Q: A missile is moving 1350 m/s at a 25.0° angle. It needs to hit a target 23,500 m away in a 55.0°…

A: See below

Q: If the cathode voltage of a forward biased silicon diode is -5.9 V, what is the anode voltage? 0.7 V…

A: Cathode voltage = -5.9 VAnode voltage = ?

Q: If 50 g of lead (of specific heat 0.11 kcal/kg - °C) at 100°C is put into 75 g of water (of specific…

A: Given Data:Mass of lead Mass of water Specific heat of lead Specific heat of water lead is at a…

Q: Determine the banked angle on a 60 m radius curve if the maximum speed a car can reach is 15.0 m/s.

A:

Q: A ball is thrown vertically upward with an initial speed of 84 ft/sec from the base A of a cliff…

A:

Q: The distance from Earth to the Moon is approximately 270,000 mi. The speed of light is 3.00 × 108…

A: Distance, d = 270,000 mi = 434522880 mSpeed, v = 3×108 m/sTime, t = ?

Q: Consider two vectors, A, which points along the +x direction with a magnitude of 3 units and vector…

A: Consider two vectors, A, which points along the +x direction with a magnitude of 3 units andvector…

Q: Two forces, F and Fact on the 7.00-kg block shown in the drawing. The magnitudes of the forces are…

A: Mass of the block = 7.00 kg Force F1 49.7 N acting on the block at angle of 70o from…

Q: A pressure cooker is a covered pot sealed everywhere except for a small circular opening in the top.…

A: Radius of the opening Weight

Q: 14. The index of refraction of ethyl alcohol is 1.36. If light strikes an ethyl alcohol-air boundary…

A:

Q: (a) Determine the capacitance of a Teflon-filled parallel-plate capacitor having a plate area of…

A:

Q: 2. A conical pendulum consists of a 0.50 kg ball attached to a string with a length of 75.0 cm. The…

A:

Q: On its takeoff roll, the airplane starts from rest and accelerates according to a = ao - kv² where…

A: On its takeoff roll, the airplane starts from rest and accelerates according to- a=a0 - kv2…

Q: In silicon, electrons can be excited to become free by light energy only heat energy only applied…

A: The process by which electrons can be excited to become free is called electron excitation process.…

Q: how hard does the wall push on you? b. If your mass is 60 kg, what is your acceleration?

A:

Q: Q) A wire 2 m long carries a current of 10 A and makes an angle of 37° with a uniform magnetic field…

A:

Q: When you weigh yourself on good old terra firma (solid ground), your weight is 142 lb. In an…

A: GivenWeight on solid ground Now mass Weight on elevator

Q: Pearson eText Study Area Student Workbook Document Sharing User Settings USDCAD A 12-cm-long thin…

A:

Q: A water-skier is being pulled by a tow rope attached to a boat. As the driver pushes the throttle…

A: Mass (m) = 79.5 kgInitial velocity (u) = 7.4 m/sFinal velocity (v) = 10.6 m/sRequired:Work done (W)

Q: 1. Connecting Rotational and Translational Motion: In nuclear reactors, control rods are made of…

A: The system of Mechanical motion:

Q: A javelin is thrown at 28.5 m/s from flat ground at a 43.2° angle. What is the maximum height of the…

A:

Q: An ideal Carnot heat engine operates between 385 K and 460 K. What is its efficiency? O 0.61 O 0.38…

A: Temperature of sink ( T1 ) = 385 KTemperature of heat reservior( T2 ) = 460 K

Q: A 1.0-m-tall vertical tube is filled with 20 °C water. A tuning fork vibrating at 573 Hz is held…

A: To determine the water heights at which a standing wave will occur in the tube above the water, we…

Q: An interference pattern is formed on a screen when the He-Ne laser light (A= 6.23 x 107 m) is…

A:

Q: You have a system consisting of 2 masses of 3 kg and 6 kg which are 3 meters apart. Where is the…

A:

Q: A diffraction grating has 1000 slits/cm. When light of wavelength 480 nm is shone through grating,…

A:

Q: Find the electric field at a distance L directly above an infinitely large plane carrying uniform…

A: To find the electric field at a distance L directly above an infinitely large plane carrying a…

Q: The conductivity of the material given below is a S/m. Find the resistance between the shaded…

A: Now,

Q: A quantity of mercury occupies 400.0 cm3 at 0°C. What volume will it occupy when heated to 50°C?…

A: Given data:  Initial velocity (Vi) = 400.0 cm3Initial temperature (T0) = 0 °C = 273 KFinal…

Q: A quarterback throws a football while standing at the very center of the field on the 50 yard line.…

A: a)The ball leaves his hand at height (xo) =6ft =ftInitial velocity(vo) =51i+37j+27k ft/sAcceleration…

Q: When a stone is thrown horizontally from the top of a 30 m hill, it can be observed that it falls…

A: Page 1

Q: A moving electron accelerates at 5200 m/s2 in a 55.0° direction. After 0.530 s, it has a velocity of…

A:

Q: The vector product of two vectors A and B is a vector and so has both a magnitude and direction: 1.…

A:

Q: One day while out on a space walk to repair your ship, you notice that you have forgotten to tie off…

A:

Q: Determine the amount of work, in Joules, done to lift a 500 kilogram piano 4 meters above the…

A: Mass of paino(m) = 500 kgHeight above ground (h) = 4mLinear mass density of cable = 5 kg/mLength of…

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.