241 Questions for the topic electrical engineering
Electrical Engineering Help (I am stuck on what to do)
A 15 Watt desk-type fluorescent lamp has an effective resistance of 200 ohms when operating (note: the 15 Watts is only associated with the lamp). It is in series with a ballast that has a...
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Algebra: Proportions
The energy 𝑊 used by a device is directly related to the current 𝐼, the voltage 𝑉, and the length of time 𝑡, for which the energy is used. If a 240-V clothes drier draws a current of 15 A and in 45...
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Per the 2017 NEC, what is the largest size insulated solid conductor permitted to be installed into an existing raceway?
It is in the 2017 National Electrical Code book and I need the article and section please
Electrical Algebra Problem
The impedance, 𝑍, in a certain circuit is the square root of the sum of the square of the resistance of 𝑅 and the square of the reactance 𝑋 in ohms. Find the reactance of the circuit if 𝑍 = 10 Ω...
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Electrical Algebra Problem
The voltage, 𝑉, in volts, in a circuit is the square root of the product of the power, 𝑃 in watts and the resitance, 𝑅, in ohms. If the voltage is 240 V and the power is 2500 W, what is the...
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How speed torque curve is defined in different riding modes of electric vehicle.
In Electric vehicle we see they have different riding modes which are like Eco mode, Highway mode, Sport Mode. These modes have different torque speed relationship. so how we decide this speed...
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Circuits II Laplace and differential equation question
Find thedifferential equationrelating()Find thefind a differential equation relating c(t) and r(t) if:C(s)/R(s) = (s + 1)/(s(s+2)(s+3))ctand()rtif
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Solve for the equivalent resistance seen by the source
A voltage source is connected to a series resistance =1 ohm and a parallel combination of two resistance each = 2 ohms.
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08/16/19
An inductor rated at 10 mH and a 100 Ω resistor are in an AC circuit that has a frequency of 100 Hz. What's the inductive reactance at this frequency?
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08/16/19
A series RL circuit has a total resistance of 2,000 Ω and an inductive reactance of 680 Ω. What phase angle would separate the circuit's current and voltage?
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08/16/19
A parallel RL circuit has an AC source of 80 volts at a frequency of 600 Hz. The current through the resistor is 3.4 mA and the current through the inductor is 2.6 mA. What's the circuit current?
A parallel RL circuit has an AC source of 80 volts at a frequency of 600 Hz. The current through the resistor is 3.4 mA and the current through the inductor is 2.6 mA. What's the circuit current?
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08/12/19
A pressure transmitter has a range of -1 to 3 Bar and an output of 4 to 20 mA. Calculate the required pressure input and expected mA output to calibrate the device at 10%, 20% and 85% of it's range.
Also, if the same pressure transmitter was vented to the atmosphere, having the general atmospheric pressure with no other pressure applied, what would the mA output be?
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08/08/19
Why does India import electricity even though it has become a power surplus nation by 2015?
08/06/19
What is the relationship between the generated voltage and excitation voltage?
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08/05/19
Why is my audio speaker's 2-earth line not connected or even not connected to the PCB earth at all?
08/03/19
Why is the energy lost when a charged capacitor is instantaneously connected in series with a resistor and an uncharged capacitor independent of the value of the resistance?
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08/02/19
Whats the difference between a graphing multi meter and DSO (digital oscilloscope)?
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08/02/19
Why do we pay an electric bill when the power of the sinusoidal wave is zero?
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