A constant voltage of 11.00 V has been observed over a certain time interval across a 2.30 H inductor. The current through the inductor, measured as 1.00 A at the beginning of the time interval, was observed to increase at a constant rate to a value of 8.00 A at the end of the time interval. How long was this time interval?

Q: (a) The figure on the left is a snapshot of a pulse traveling to the right at 1 m/s at time t = 0.…

A: Explanation: Now for the given graph, we have marked each point on the graph from g to a.a being the…

Q: A water tower is a familiar sight in many towns. The purpose of such a tower is to provide storage…

A:

Q: Three of the following sensors can be used to detect presence of an object. Which one cannot?

A: Let me summerise some key points that can help us to answer this question Strain gauge- it is an…

Q: A spherical balloon of volume 3.90 x 10³ cm³ contains helium at a pressure of 1.17 x 105 Pa. How…

A:

Q: Part A Rotational Kinetic Energy: Suppose a uniform solid sphere of mass M and radius R rolls…

A: Part A   The conservation of energy occurs here. So,  Einitial = Efinal => (PE + KEtranslational…

Q: What is the redshift z of a galaxy 172 Mpc away from us?   Note: Assume a value of the Hubble…

A:

Q: A welder using a tank of volume 8.00×10-2 m³ fills it with oxygen (with a molar mass of 32.0 g/mol)…

A:

Q: A ball tied to a string is swung around in a horizontal circle. Which one of the following…

A: As we have a ball tied to a sting and going in horizontal circle motion.1. As ball is moving in…

Q: What did the Cavendish experiment measure? Acceleration due to gravity The eccentricity of Earth's…

A: Given data:  The Cavendish experiment Required: The quality measured by Cavendish experiment

Q: For a fifth set of maneuvers, the astronaut’s partner calculated her average acceleration over the 2…

A: Given data:  Time interval (Δt) = 2 s Initial velocity (v1x) = -0.4 m/s Acceleration (ax) = -0.5…

Q: A PARTICLE IS MOVING ALONG A HORIZONTAL LINE ACCORDING TO THE GIVEN EQUATION WHERE AT (t) SECONDS,…

A:

Q: Here, alpha (the angle at the top of the triangular prism) is 41.6 degrees. What is theta (the angle…

A:

Q: 1. A satellite is spinning at 6 rev/s. The satellite consists of a main body in the shape of a…

A: Given:  Angular speed of satellite, ω = 6 revs= (6×2π) rads= 12π  rads Mass of sphere, M = 300 kg…

Q: 10. an arrow released at 47 meters per second at an angle of 10.7° with the horizontal

A:

Q: A thin rod has a length of 0.522 m and rotates in a circle on a frictionless tabletop. The axis is…

A:

Q: 4. Three identical point charges +Q are placed each at a distance a from the origin as shown in the…

A:

Q: How is resonance different than eqilibrium?

A: Solution: The "movement of the pi-bond" (more precisely, the delocalized electrons of the pi-bond)…

Q: state-of-the-art proton decay experiment is expected to detect 47% of the proton decays in a body of…

A: Given,  Proton lifetime = 10^31 Detect actual decay = 47%

Q: Problem 3: An I = 10 A current is charging a D = 1.0 cm diameter parallel-plate capacitor. What is…

A: The given information: ∮B→out.ds→=Bout∮ds→=2πsBout    ---(1) s=2 mm=2×10-3 m Ithrough=10 A…

Q: Two objects of equal mass m undergo a completely inelastic collision (see the figure below). Prior…

A: Apply the momentum conservation equation along the x-axis to determine the relationship between…

Q: Part A What capacitance, in F, has its potential difference increasing at 1.3x106 V/s when the…

A:

Q: One end of a wire is attached to a ceiling, and a solid brass ball is tied to the lower end. The…

A:

Q: A 80 g, 37-cm-long rod hangs vertically on a frictionless, horizontal axle passing through its…

A: Given, mass of the rod, M = 80 g length of the rod, l = 37 cm mass of the clay ball, m = 12 g…

Q: consider two ideal polarizers, P1 and P2, that are oriented perpendicular with each other as shown…

A:

Q: IR = mL212+ m R+L22 Not sure what the equation means?

A:

Q: A 1.00-cm-high object is placed 3.95 cm to the left of a converging lens of focal length 8.30 cm. A…

A: Note: Distances to the left of lens are taken as negative and distances to the right of lens are…

Q: What is the redshift z of a galaxy 186 Mpc away from us?   Note: Assume a value of the Hubble…

A: Hubble's law, also known as Hubble- Lemaitre law states that the velocity of the galaxy, also called…

Q: 10. A uniform electric field E = (12) + 16 K) N/C penetrates a circular surface of area 3.2 m² lies…

A:

Q: long parallel wires in vacuum are 4 cm apart and carry current of 3 A and 4 A in  the same…

A:

Q: If the skateboarder has 3000J of Potential Energy at his current position. What will his potential…

A: Given data: Initial potential energy, P.Ei=3000 J Height, h=4 m

Q: In 1923, the United States Army (there was no United States Air Force at that time) set a record for…

A:

Q: Certain spiral galaxy is 9.7 Mpc away from us. How fast in km/s is this galaxy moving away from us?

A: Given, Distance of Galaxy is = 9.7 MPC We need to calculate, velocity of Galaxy is = ?

Q: Part A Projectile Motion: A boy throws a rock with an initial velocity of 3.13 m/s at 30.0° above…

A: Given  Angle of projectile,  θ = 30° Initial velocity,  u = 3.13 m/s  Acceleration due to gravity,…

Q: You want the final speed at the bottom of your roller coaster hill to be 25 m/s. What is the height…

A: Given data- The final speed at the bottom of roller coaster is, v=25 m/s let us consider height of…

Q: The refractive index of the standard blue (λ = 486.1 nm) and red (λ = 656.3 nm) hydrogen lines in…

A: Givenrefractive index for blue light, n1=1.74refractive index for red light, n2=1.71angle of…

Q: A vertical load of 100N, in equilibrium, is supported by two ropes, A and B, in the same vertical…

A: Given, weight of the load, W = 100 N Tension in rope B, TB = 40 N at 30° to the vertical axis

Q: hill Scale 1.0 cm = 3.0 m Second hill Third hill End of ride a) Potential energy at the maximum…

A: Given,  H1 = 24 m  H2 = 17 m  H3 = 12 m  M = 149 kg      a)  potential energy at the maximum height…

Q: Bobby and Michael are competing on bleacher runs. Both runners weight the same. Bobby runs up the…

A: Given data:  Both runners weight the same Height of the stairs is same Required: The work done (W)

Q: How far apart are a proton and electron if they exert an attractive force of 3 N on one another?

A:

Q: The input pressure on a hydraulic lift is 1200 Pa. If the output force on the other side is 800 N,…

A: Given data:  An hydraulic lift  Input pressure (P1) = 1200 Pa Output force (F2) = 800 N Required:…

Q: 1. A massless rope that run over a frictionless pulley as shown in the figure. If M₁ = 8 Kg and M₂ =…

A:

Q: How much power in Watts is required to lift a 75.0kg mass through a height of 1.85m in a time of…

A: Given data:  Mass (m) = 75.0 kg Height (h) = 1.85 m Time (t) = 3.00 s Required: The power (P)

Q: A cylinder is fitted with a piston, beneath which is a spring, as in the drawing. The cylinder is…

A: k = 4400 N/m Atmospheric pressure = 101300 N/m2radius = 0.028 m

Q: Gravitational Force: Two small objects, with masses m and M, are originally a distance r apart, and…

A:

Q: Why does doubling the mass of an object double its weight, but doubling its distance from the center…

A:

Q: An airplane flying 500mph flew over a monument at the same time that a second arplane also flew over…

A: Given: The speed of the first airplane: v1=500 mph The speed of the second airplane: v2=600 mph The…

Q: What must be the magnitude of a uniform electric field if it is to have the same energy density as…

A: Given data The magnetic field is given as B = 0.5 T. The mathematical expression to calculate the…

Q: A professional golfer is examining a video of a practice swing. The high-speed footage shows that…

A:

Q: Prove that the momentum operator of a free body is conserved or constant

A: The free particle is given by the Hamiltonian H = p2/2m

Q: An unknown metal sample is interrogated using a beam of X-rays to liberate electrons which are then…

A: The given problem involves the concept of photoelectric effect. Photoelectric Effect is the…

Electromagnets

The word "electromagnet" is composed of two words, ‘electro’ and ‘magnet’. It is a type of magnet in which an electric current helps in the generation of a magnetic field. Electromagnets usually consist of two major parts, wire and a coil around which the wire is wound. This is called a solenoid. When an electric current is allowed to pass through the coiled wire, the electric current produces a magnetic field. This magnetic field is present only when current is passing through the wire.