325 Answered Questions for the topic electrical engineering

Electrical Engineering

01/05/23

sequence recognizer

A1) Design a sequence recognizer (Mealy machine) for a sequence of ‘00101’. Look at the followingexample.Input X: 0010 0101 1010 1110 1011 0010 1100 0101 1011 ...Output Z: 0000 0001 0000 0000 0000... more
Electrical Engineering

12/09/22

electrons are negatively charged particles, and are contained in the nucleus of the atom.

Electrical Engineering

10/03/22

Physics Question

Pls help me solve the math problemHeres the link below:https://ibb.co/y09frGw
Electrical Engineering Linear Algebra

09/24/22

Convolution and solving for the Toeplitz and Hankel matrices

Some linear functions associated with a convolution system. Suppose that 𝑢 and 𝑦 are scalar-valued iscrete-time signals (i.e., sequences) related via convolution:𝑦(𝑘) = ∑j ℎj𝑢(𝑘 − 𝑗), 𝑘 ∈ ℤ, where... more
Electrical Engineering Linear Algebra

09/24/22

Show that for matrices 𝐴, 𝐵 ∈ ℝnxn, a vector 𝒘 = 𝐴𝐵𝒙 can be written as 𝒘 = ∑ni=1 (𝒃iT𝒙)𝒂i

Show that for matrices 𝐴, 𝐵 ∈ ℝnxn, a vector 𝒘 = 𝐴𝐵𝒙 can be written as 𝒘 = ∑ni=1 (𝒃iT𝒙)𝒂iwhere 𝒃𝑖T is the 𝑖th row of matrix 𝐵, and 𝒂i is the 𝑖th column of matrix 𝐴.(Hint: Let 𝒛 = 𝐵𝒙, then 𝒘 = 𝑧1𝒂1... more
Electrical Engineering

09/21/22

A half-watt is equal to how many milliwatts?

Electrical Engineering Science Physics Act Science

09/20/22

Kirchoff's laws and electrical circuit

Two batteries with emf ε1 = 10 V and emf ε2 = 20 V and internal resistances r1 = 1 Ω and r2 = 2 Ω, respectively, are connected in parallel, and then connected in parallel to a resistor of R = 30 Ω... more
Electrical Engineering Science Physics Act Science

07/25/22

Find the resistance between point A and B

a) A figure made of wire consists of two equilateral triangles of triangles as shown in fig. a). The length of the side of the larger triangle is a, the longitudinal resistance of the wire is ρ.... more
Electrical Engineering Physics

06/30/22

The electric field intensity 2m from the surface of a charged sphere is 30.86 x103 N/C. The charge density at the surface of the sphere is 8.85 x 19‒7 coul/m2. What is the radius of the sphere ?

The electric field intensity 2m from the surface of a charged sphere is 30.86 x103 N/C. The charge densityat the surface of the sphere is 8.85 x 19‒7 coul/m2. What is the radius of the sphere ?•... more
Electrical Engineering Linear Algebra

06/21/22

Could s.o help me this problem. We are doing the second semester of the first year of ho chi minh city uni of tech. (HCMUT) . This is linear algebra course

Doing the row operation -6R2 + R3-> R3 on a matrix A(4*4) this is equivalent to multiplying A by the matrix D. Find D and figure out it is on the left or right of the A
Electrical Engineering Calculus

06/20/22

Evaluate the integrals

let ∫04.5f(x)dx=1, ∫01.5f(x)dx=6, ∫34.5ff(x)dx=10find ∫1.53f(x)dx= and ∫31.5(1f(x)-6)dx=
Electrical Engineering Science Physics

06/12/22

Physics question about AC generator

The AC generator rotation frequency is 16.5 Hz. The generator generates 50 Hz alternating current. How many pairs of magnetic poles this generator has?The correct answer is 3 pairs.
Electrical Engineering

05/30/22

CALCULATE THE THREE RESISTORS.

Three resistors R1, R2, and R3 are connected in series-parallel with R1 in series with the parallel combination of R2 and R3. The whole combination is connected across a 140 V source. Resistors... more
Electrical Engineering

05/10/22

A 25-ohms load is drawing 0.6 amperes. What is the source voltage?

Electrical Engineering Physics

05/09/22

VALUE OF RESISTOR

A resistor R in series with an 8 ohms resistor is connected across a 60 V voltage source delivering 2.5 A of current. What is the value of resistor R ?
Electrical Engineering Physics

04/27/22

In the figure R1 = 5.65 Ω, R2 = 17.0 Ω, and the ideal battery has emf ε = 13.5 V. (a) What is the magnitude of current i1? (b) How much energy is dissipated by all four resistors in 2.36 min?

In the figure R1 = 5.65 Ω, R2 = 17.0 Ω, and the ideal battery has emf ε = 13.5 V. (a) What is the magnitude of current i1? (b) How much energy is dissipated by all four resistors in 2.36 min?
Electrical Engineering Physics

04/27/22

In the figure four particles are fixed along an x axis, separated by distances d = 3.00 cm.

In the figure four particles are fixed along an x axis, separated by distances d = 3.00 cm. The charges are q1 = +3e, q2 = -e, q3 = +e, and q4 = +8e, with e = 1.60 × 10-19 C. What is the value of... more
Electrical Engineering Physics

04/27/22

You are given a number of 22 Ω resistors, each capable of dissipating only 2.1 W without being destroyed.

You are given a number of 22 Ω resistors, each capable of dissipating only 2.1 W without being destroyed. What is the minimum number of such resistors that you need to combine in series or in... more
Electrical Engineering

04/26/22

7. A fiber-optic cable has a bandwidth of 800 MHz-km. What is the bandwidth of a 1000 -ft segment of a cable?

7. A fiber-optic cable has a bandwidth of 800 MHz-km. What is the bandwidth of a 1000 -ft segment of a cable?
Electrical Engineering

04/26/22

2. State the lowest wavelength and highest wavelength of a visible light?

2. State the lowest wavelength and highest wavelength of a visible light?
Electrical Engineering

04/26/22

1. Which segment of the optical-spectrum has the highest frequencies? The lowest frequencies?

1. Which segment of the optical-spectrum has the highest frequencies? The lowest frequencies?

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