Definition and Mechanics of Motors

Q: An amplifier has a loop gain of -200 and a feedback of 0.10 is added. If the loop gain change to 250...

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Q: 13: Choose the correct answer: 1. In a symmetrical three phase system the total instantaneous three ...

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Q: Consider the series RL circuit shown below. The emf is given by ?=10e−0.1t and it’s given that the i...

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Q: Why do we apply reduction factors in the design of electric equipment? Also, why do we increase the ...

A: Reasons for applying reduction factors in the design of electric equipment are as follows: For a ca...

Q: et sin3t sin 3t

A: As per our guidelines we are supposed to be answer only the first question. Kindly repost the other ...

Q: What is the capacity factor?

A: Given data: Adam's Bay wind site Wind turbine G80-2000 Pout= 2000kw k=2.05 c=8.35 m/s h=10 m Site ro...

Q: Problem 4 A power delay profile of a channel is given in the figure below. a) Evaluate the channel's...

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Q: A 220 V DC motor has an armature resistance of 0.4 ohm, a shunt field resistance of 175 ohms  and a ...

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Q: Two T connected transformers are used to supply a 440V, 15KVA balanced 3phase load from a balanced 3...

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Q: 2. Find the inverse z-transform of X(2) = : 1z|> 0.1 -0.1

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Q: Given a (step-down) DC Chopper. The input DC voltage, Vi = 30 V. The measured output of the chopper ...

A: Duty cycle =On timeon time + off time                  =Output voltageinput voltage. Use above formu...

Q: Qc= 9 µC r= (0, 4.2cm) 4. What is the magnitude of the static electric force at point C? • Q= 3.2 µC...

A: The solution is given below 

Q: A DC series generator is supplying a current of 5A to a series lighting system through a feeder of t...

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Q: +20V 1kQ 'Dss = 4mA Vp = -4V Q1 Find: Vs, Vd, Vg, and Vds 1MQ :4.7kQ 2kQ -10V

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Q: Identify the addressing mode of this assembly language. MOV WORD PTR[BX + SI], 5678H Select the corr...

A: Answer: Base plus index   Explanation: a). It is not a valid option. The scaled index addressing mod...

Q: Consider a periodic x(t) with period T, = 2 such that in one period x(t) = t² for |t| < 1. Sketch th...

A: We need to find out Fourier series coefficient for given signal

Q: Consider the uniform plane wave incident on an air-polystyrene interface at an inclined angle 0, and...

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Q: Find the line current, power factor, a

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Q: R1 = 1.02 R3 = 1.4N E = 12V R2 = 6.7N R4 = 4.22

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Q: In the circuit of Fig. 7.93, v(t) = 80e¯10 v, t>0 i(t) = 5e 10 mA, 1>0 (a) Find R, L, and 7. (b) Cal...

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Q: Calculate the length of the following antennas, and state their radiation resistance at 28 MHz. Do n...

A: a) The length of the dipole antenna is given as:  l=λ2λ=Wavelength Plugging the known values in the ...

Q: zero. a. Find the charge on the capacitor at t=6ms b. Find the voltage on the capacitor att= 10ms A)...

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Q: oY(s) U(s). 4.

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Q: What is the collector-emitter voltage. Use the ideal transistor. Given: R B = Yellow, Violet, Yellow...

A: The given circuit is a common emitter amplifier. The required parameters can be calculated by applyi...

Q: Find the load current and power delivered to the load, using thevenin's theorem ? 22 32 24V 82 RL 두

A: We need to find load current and load power for given circuit

Q: A bridge-type rectifier with an input voltage of 112.23Vac (at the primary winding) and a transforme...

A: The solution is given below 

Q: 7.19 In the circuit of Fig. 7.99, find i(t) for t> 0 if i(0) = 6 A. 6H 0.5i 40 2 102

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Q: 1. Why do we apply reduction factors in the design of electric equipment? Also, why do we increase t...

A: Electrical equipment- In general electrical equipment is used to modify a electrical input to someth...

Q: 5. Three charge spheres are at the position shown in the figure. Charge A (4.67x10°C) is located at ...

A: (5) (a) The net electrical force between two charges is given as: F=kQ1Q2r2 All are positive charges...

Q: A 60 - CYCLE ALTERNATING VOLTAGE HAS AMPLITUDE OF 208 VOLTS. DETERMINE THE INSTANTANEOUS VALUE OF TH...

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Q: 4. For a silicon p+-n abrupt junction with Np=5×1015 cm³, find the depletion layer width at breakdow...

A: (4) It is given that: ND=5×105 cm-3

Q: find VO using superposition principle. Let Vs = 21V and u = 2. Ikn 1kn Ikn 2 kn HmA (4 2 kn Vx Ikn 3...

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Q: gadpd puog uous pau p ui yonnios unok aɔDIA 1. Two shunt generator in parallel have each armature re...

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Q: 7.17 Consider the circuit of Fig. 7.97. Find v,(1) if i(0) = 6 A and v(1) = 0. ww

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Q: If a MOV SI, [BX+DI] instruction appears in a program, what is its machine language equivalent? Sele...

A: The given instruction that appears in a program is: MOV SI, [BX+DI]

Q: Q3: What is the value of Io in the circuit using loop analysis? Write your answer in time domain.

A: The given circuit is shown as:

Q: Find the EFS coefficients of the following x(t). The using this result, find EFS coefficients of oth...

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Q: For the circuit, now keep switch J2 closed, close switch J1. Determine the expressions for the volta...

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Q: A 500 kVA, 2300/230 V, 60 Hz transformer was open- and short-circuit tested. The data is provided be...

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Q: Example/ Draw the bode plot of the below transfer function, with L = 0.5 & T = 1? e tal G(jw) 1 + jo...

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Q: P1(2, 90, 3) to the SCs Find the equation of the vector starting from the CCS point P2(3, 60, 30) po...

A: Given:CCS point, P1=(2,90o,3)SCS point, P2=(3,60°,30°)

Q: 14.22 The input to the series RLC bandpass filter designed in Probiem 14.21 is 20 cos wt V. Find the...

A: Since you have asked multiple questions in a single request, we will be answering only the first thr...

Q: Question 4: The Transformer A current transformer is used to provide a range of values of 5A, 1A and...

A: Current transformer and voltage transformer is an measuring instruments which measure the currents a...

Q: Consider the circuit shown below. Find V, (in V), I, (in A), and I, (in A). (Due to the nat WebAssig...

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Q: Determine the inverse laplace transform of the following: a. 1/[(s-2)^2 + 9] b. s(s^2 - 9)/(s^2 +9...

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Q: A filter has the following transfer function: H(z)=(1−0.5z²)/z² The difference equation of this fi...

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Q: Determine the I in the circuit below, assuming the circuit is in steady state 10 1ng 10 mil 25 a 100...

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Q: 10: Some antennas are better for surveys in which you don't know the exact location of the target, a...

A: Antenna- An antenna is a device which is capable for transferring and receiving electromagnetic wave...

Q: The 60 Hz AC source and 240 V rms voltage provides a power of 5000 VA

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Q: Thirty (30) units of 200 watts, 250 incandescent bulbs are connected in balanced delta across a 3 ph...

A: The solution is given below 

DC Series Motors

A DC motor is a type of electric motor which converts electric energy into mechanical energy. The forces that are produced by the magnetic field are what those common types of motors rely upon. Either electro-mechanical or electronic, all types of DC motors have some internal mechanism to change the current direction in part of the DC motors. As the DC motors could be powered from existing DC lighting power distribution systems, these motors were the first form of motors widely used. By changing the strength of the current in its field winding or by using a variable supply voltage, the speed of the DC motors can be controlled over a wide range.