A DC shunt motor is designed with compensating windings. If there is a compensating winding then the effect of armature reaction will not exist. If we excite the compensating winding with field current then what happens in the torque-speed characteristic of a shunt DC motor? Explain mathematically in detail. Will armature reaction exist in this machine? Explain briefly
Q: The amusement park ride shown above takes riders straight up a tall tower and then releases an appar...
A: Introduction: A free-falling object is an object that is falling under the sole influence of gravity...
Q: Monochromatic x rays are incident on a crystal for which the spacing of the atomic planes is 0.440 n...
A: Given: To find the wavelength of the X-rays as,
Q: (b) Assume that a source is detected against a strong background (an example would be the case of mi...
A: Given: The number of counts detected o-source is S+B. The number of counts detected from the backgro...
Q: One sometimes sees rows of evenly spaced radio antenna towers. A student remarked that these act lik...
A: One sometimes sees rows of evenly spaced radio antenna towers. A student remarked that these act lik...
Q: Earth is rotating about the Sun in our solar system. The distance between the Earth and Sun is 1.5 ×...
A: (a) Axial momentum p=ME . vequatorp=ME . requator .wAngular momentum,L=p.requatorand Now,w=2π24×60×6...
Q: 1. X-rays with a wavelength of 2, =8.55pm are used in a Compton scattering experiment (i.e. the phot...
A: a) Given, λ = 8.55 pm = 8.55×10-12 m We need some constant values, Planck's constant h = 6.626 ×10-...
Q: An athlete exerts a tension of 6.00 * 10^2 N on one end of a horizontal rope that has length 50.0 m ...
A: Here, use the relations for a wave on a string to get the required parameters.
Q: The two plates of a parallel-plate capacitor each have area1.20 m2, are 4.50 mm apart, and initially...
A: Given that,Area of plates, A=1.20 m2distance between plates, d=4.50 mm=4.50×10-3 mVoltage, v=3.50 kV...
Q: Can a transformer be used with dc? Explain. What happens if a transformer designed for 120 V ac is c...
A: Here we need to find whether a transformer be used with dc:Now,We can say that,No, a transformer can...
Q: (3) An object of mass 10 kg is dropped from a flying plane. The force of air resistance is 0.07v, vh...
A: How long has the object travelled before it is within 10% of its terminal velocity. given, mass of o...
Q: An earth satellite moves in a circular orbit with an orbital speed of 6200 m/s. Find (a) the time of...
A: We know that,Orbital speed of satellite, v=GMEr equation 1here, G is the universal gravitatio...
Q: An earth-orbiting satellite has solar energy–collecting panels with a total area of 4.0 m2 . If the ...
A: Given area of solar plate, A = 4m2 And since solar constant (flux density) is, GSC=1361 W/m2 So th...
Q: Question: The system given in the figure below has a self-weight effect of g = 2 kN / m. The most un...
A: Given: E=3×107kN/m3I=0.0045 m4 Formula used: V(L)=-316PL3EI
Q: Please help asap
A: This problem can be solved using the formula for the electric potential due to a point charge.
Q: Determine the mass moment of inertia about z axis of the frustum of the cone which has a conical dep...
A:
Q: Please help asap
A: Concept used: Ampere circuital law can be used to find magnetic field.
Q: An asteroid could produce an iron core and silicate mantle if it a. differentiated. b. o...
A: Asteroids are rocky objects of irregular shapes that orbit the Sun in the solar system. Asteroids ar...
Q: Please help asap
A:
Q: Find in square meters the area of the 250 fins.
A: Given: Side of the square is a is 9.2 cm Diameter of the circle in between squ...
Q: Three rods are joined to form a 45-45-90 triangle with two sides of length a' and the hypotenuse of ...
A:
Q: Consider a proton with kinetic energy 10MEV in a cyclotron with magnetic field of 1T. Proton mass is...
A:
Q: A dc motor with its rotor and field coils connected in series has an internalresistance of 2.00 Ω. W...
A: Given: The internal resistance of motor is r=2.00 Ω. The voltage of the motor is V=120 V. The curre...
Q: (Would like answers for part B ONLY please-need info from part a to answer. I already solved part a)...
A: Efficiency is the ratio of output power to the input power. Power is the rate of change of work done...
Q: During a test dive in 1939, prior to being acceptedby the U.S. Navy, the submarine Squalus sank at a...
A: The problem is based on the concept of Variation of the pressure with height. Variation of the pres...
Q: Two protons move parallel to the x-axis in opposite directions at the speed v (small compared to the...
A: Given: Two protons move parallel to x-axis with speed v, speed of light is c, ...
Q: In an L-R-C series circuit, the source has a voltage amplitudeof 120 V, R = 80.0 Ω, and the reactanc...
A: The voltage across the capacitor is related to the reactance capacitance XC:VC=IXCI=VCXCwhere, VC=36...
Q: A coaxial cable has inner conductor radius a=7.6cm and outer conductor radius b=24.6cm. The medium b...
A: From given figure,a=7.6 cmb=24.6 cmand, For free space ε=8.854×10-12 F/mWe know that, Capacitance of...
Q: A gravity board is a convenient and quick way to determine the location of the center of gravity of ...
A: Given, Mass,M=65kgTotal Distance,D=2mForce exerted by scale,Fs=300NAcceleration due to gravity,g=9.8...
Q: Question thin rod of arbitray heat Consider finite length, rod is heated with external ource V, (t),...
A: To answer: (a) Model the problem mentioned in the statemant (b) Solve the modeled by suitable method...
Q: C part only
A: (c) Let us we have to denote l and d the total distance from the object to the screen and the give...
Q: Answer is also mentioned in picture containing the question. Kindly check the answer before submitti...
A: Given: τ=2.4×104 years=2.4×104×3.2×107s=7.68×1011s d=1mm=10-3mρ=19800kg/m3m0=3.84×10-25kg
Q: Michelson used the motion of the Earth around the sun to try to determine the effects of the ether. ...
A: The original purpose of this experiment was to prove the existence of ether. According to that theor...
Q: Two blocks with masses m, = 11 kg and m2 = 16 kg are connected with a rope and move on a rough horiz...
A: Given: m1=11kgm2=16kga1=2m/s2fk,1=22N
Q: One newly discovered light particle has a mass of m and property q. Suppose it moves within the vici...
A: Given,Through Work energy theorem,KE1f+KE2f+PEgravf+Uelasticf+Unewf=KE1i+KE2i+PEgravi+Uelastici+Unew...
Q: Kinetic Coeff. Friction = 0.33 Mass m1 = 25.6 kg Mass m2 = 48.5 kg Mass m3 = 144 kg Find the acceler...
A: THE FORCE OF KINETIC FRICTION IS GIVEN AS: Fk= μkN ----(1)WHERE μk= COEFFICINT OF KINETIC FRICTION ...
Q: The resistors network shown below. Take R1 = 12 Ω, R2 = 4 Ω, R3 = 1 Ω, R4 = 6 Ω, R5 = 3 Ω a...
A:
Q: In AC Bridge experiment, the balance was obtained as shown Therefore, the unknown capacitance C, is:...
A: Introduction: When the voltage between point 1 and the negative side of the battery is equal to the ...
Q: The rings of Uranus were discovered a. during an occultation (an eclipse) of a star. b. ...
A: Introduction: All Jovian planets have rings.
Q: Please help asap
A: The electric field in the wire is given by the following expression: E=ρLA=ρLπr2 Therefore, EBEA=rAr...
Q: Find the mechanical energy of a block-spring system having a spring constant of 1.3 N/cm and an osci...
A: Given that Spring constant is k=1.3 Ncm⇒k=1.3×110-2 Nm⇒k=1.3×102 Nm and amplitude is A=2.5 cm⇒A=2...
Q: You use a lens of diameter D and light of wavelength l and frequency f to form an image of two close...
A: Given: To justify the given statement as,
Q: Topic: Electrical Networks Solve Ix and branch currents. Use MESH CURRENT ANALYSIS/SUPERMESH
A:
Q: How much heat? 3kg vapor, 100oC --> 115oC
A: I am assuming the question asked is , the heat required for 3 kg vapour to go from 100°C to 115 ° C.
Q: Sample Spaces. Provide a reasonable description of the sample space for each of the random experimen...
A: The set of all possible outcomes of an experiment is called a sample space. It is denoted by S. From...
Q: Please help asap
A: This problem can be solved using the formula for RL circuit.
Q: Please help asap
A:
Q: Give three (3) examples of uses of Radioactivity (for example, in archaeology, engineering, nuclear ...
A: Given: To explain the examples of the radioactivity as,
Q: 2) Consider an infinitely long, thick wire of radius a, that carries a total DC current I that is ev...
A: 2 (a). Given that wire is infinitely long. Therefore, the magnetic field due to this wire at a dista...
Q: Atoms have quantized energy levels similar to those of Planck’s oscillators, although the energy lev...
A: Atoms have quantized energy levels. The energy associated with a single photon is given by the equat...
Q: Belt-zone circulation is not easily visible on Uranus because a. no clouds form in the pure hy...
A: Belt-zone circulation is not easily visible on Uranus because clouds form very deep in the atmospher...
A DC shunt motor is designed with compensating windings. If there is a compensating
winding then the effect of armature reaction will not exist. If we excite the
compensating winding with field current then what happens in the torque-speed
characteristic of a shunt DC motor? Explain mathematically in detail. Will armature
reaction exist in this machine? Explain briefly
Step by step
Solved in 2 steps with 2 images
