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Electrical Engineering Challenge
Test your knowledge of electrical circuits and components with this engaging quiz! Whether you're a student, teacher, or just an enthusiast, this quiz offers a wide range of questions that will challenge your understanding of fundamental concepts in electrical engineering.
- Multiple choice questions
- Suitable for all ages
- Great for reinforcing learning and assessment
The internal resistance of an ideal voltage source has the value equal with:
Infinite
Any value
The source value
Zero
In the R, L, C parallel electric circuit we know R = 5 [Q], L = 10 [mH] si C = 1 [microF]. The resonance frequency, fr, of the circuit will be:
Fr = 1592 [Hz]
Fr = 15 [kHz]
Fr = 150 [Hz]
Fr = 628 [mHz]
Find the equivalent capacitance between C3 and C4, knowing that: C1 = 1 [microF], C2 = 3 [microF], C3 = 6 [microF], C4 = 2 [microF] (3 Points)
8 [microF]
2/3 [microF]
4/6 [microF]
6/4 [microF]
The resistance of the capacitor with plane-parallel plates of area S, parallel placed at the distance x to each other, with dielectric of constant permittivity epsilon and resistivity ro, that is charged with charge q and —q, is:
0%
0
0%
0
0%
0
0%
0
To calculate the electric resistance using the direct method we use the relation:
A
B
C
D
The volume charge density is defined as:
A
B
C
D
A
B
C
D
A
B
C
D
The capacitance of the spherical capacitor (the capacitor plates are two metallic spheres, concentric, of radius r_e and r_i, and the dielectric between the spheres has the constant permittivity epsilon), is:
0%
0
0%
0
0%
0
0%
0
The measurement unit for the apparent power is:
VA
W
VAd
VAr
The energy stored in the electric field of a capacitor is:
A
B
C
D
With the Gauss Theorem we can determine:
The electromagnetic field intensity
The electric field intensity
The magnetic field intensity
The electromagnetic field density
The property litera_de_la_torrente is:
Absolute permeability of the medium
absolute permittivity of the medium
Vacuum magnetic permeability
Relative permeability of the medium
The electric induction of the cylindrical capacitor inside the integration surface SUM_SYMBOL ,that is also a cylinder, coaxial with the two cylindrical plates of the capacitor, having the radius a and the length d, is:
0%
0
0%
0
0%
0
0%
0
The resistance of the spherical capacitor (the capacitor plates are two metallic spheres, concentric, of external radius a and internal radius b, and the dielectric between the spheres has the constant permittivity epsilon and constant resistivity ro_symbol), is:
0%
0
0%
0
0%
0
0%
0
Applaying Voltage DIvider Theorem find the volatage on the resistor R2, U2, in [V]. Nuymberical values: R2 = 2 [Ohm]; R3 = 3 [Ohm]; UAB = 5 [V]
-2
5
3
2
When using the node potential method, which of the affirmations is wrong?
the real currents from the circuits branches are determined by applying Ohm's Law on each branch
I-n+l equations will be written
in the written equations, Elsck represents the sum of the softcircuit currents injected in node k by sources from the adjacent branches to this node (k)
A reference node is chosen, preferably the N-th node
In an electric circuit with a mixt connection, the resonance pulsation, w_de_greci_symbol:
depend only of L and C
Depend of R, C
Depend only of R
Depend only of R and L
A
B
C
D
In using the analogy between the electrostatic field and the electro-kinetic field which of the analogies is incorrect:
A
B
C
D
Which are the resonance condition?
A
B
C
D
The electric conduction law has more forms. Which one of the affirmations is not a form of the law?
A
B
C
D
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