FE Electrical and Computer Exam 2024

What's Joule's law of energy? Correct Answer-one energy form can be converted into another without loss. In physics, how is power defined? Correct Answer-as the amount of work done per unit time. P = dW/dt What is the flowcharting symbol for an input/output? Correct Answer-(parallelogram) What is an ill-conditioned stiffness matrix? Correct Answer-This kind of stiffness matrix has two or more equations that are so nearly linearly dependent that a precise numerical solution cannot be found. What are the units of magnetic flux density? Correct Answer-tesla (T) or webers per meter squared (Wb/m^2) What is the unit for a solid angle Correct Answer-steradian (sr) What is the unit for magnetic flux? Correct Answer-weber (Wb) What is the unit for luminous flux? Correct Answer-lumen (lm) what is the unit for illuminance? Correct Answer-lux (lx) what's the characteristic impedance of a vacuum, Zo? Correct Answer-squareroot(μ0/ϵ0) = μ0c, with a value of 376.730 Ω what's the symbol for iron? Correct Answer-Fe what's the symbol for geranium? Correct Answer-Ge What is the atomic mass, in atomic mass units (amu), of 12C? Correct Answer-12. what's ohm's law? Correct Answer-V = IR what;s the mathematical expression of Joule's law of heating effect? Correct Answer-P = I^2R what's the formula for a decibel of power? Correct Answer-10log(P/Po) what's the formula for a decibel of voltage? Correct Answer-20log(V/Vo) what are the properties of an open circuit? Correct Answer-arbitrary voltage zero current infinite (large) resistance what are the properties of a short circuit? Correct Answer-zero voltage infinite (excessive) current zero resistance what term describes a circuit that has the same voltage across all its elements? Correct Answer-parallel circuit what term describes a circuit that has the same current throughout all its elements? Correct Answer-series circuit What term describes an element that is not a source of energy (such as a resistor, inductor, or capacitor)? Correct Answer-passive element What term describes an element in a specific location that represents distributed properties? Correct Answer-lumped- parameter element What theorem states that the response of a linear circuit element in a network with multiple independent sources is equal to the response obtained if each source is considered individually and the results are summed? Correct Answer-superposition theorem what term describes the open-circuit voltage, Voc, at the terminals of interest? Correct Answer-Thevenin equivalent voltage what's the formula for Thevenin or Norton equivalent resistance? Correct Answer-Voc/ Isc what term describes a node connecting three or more circuit elements? Correct Answer-principal node what equation represents the maximum power transfer condition? Correct Answer-Rload = Rsource