This phenomenon refers to the changes in current caused by one conducting coil on a nearby conducting coil when its own current changes. mutual inductance false mutual induction true self-inductance false self-induction false Single One unit of the SI unit of inductance is equal to: 1 V·s/A true 1 Ω/s false 1 J/A false 1 Wb·A false Single Fill in the blanks. A self-induced EMF flows in _______________ the current that caused it. the same direction as false the opposite direction of true a direction perpendicular to false a direction counterclockwise to false Single Which of the following formulas define magnetic permeability? μ=(1+xm)2/μ0 false μ=xmμ0 false μ=(1+xm)μ0 true μ=(1-xm)μ0 false Single It is a coil-shaped device that stores energy in the form of a magnetic field. capacitor false galvanometer false inductor true battery false Single What is the shape of the ∆V vs time graph of a system with an AC supplied circuit? horizontal line false diagonal line false sinusoidal line true exponential curve false Single What are the basic components of an LC circuit? battery, inductor, capacitor true battery, capacitor, resistor false battery, resistor, inductor false battery, galvanometer, capacitor false Single What is the relationship between inductance and angular frequency? They are directly proportional false They are inversely proportional true They are independent of each other false They are equal to each other false Single What is the purpose of an electric motor? It converts magnetic energy into electrical energy false It converts electrical energy to mechanical energy true It converts mechanical energy into magnetic energy false It converts mechanical energy into electrical energy false Single No matter how perfect your electrical grid, there will still be "systems loss" that you'll need to pay for in your electric bill. This loss will still naturally arise as a result of: The need to make step up transformers work 24/7 false Some electrical energy in the grid being transformed into heat energy true Unexpected increases in the price of the fuel used by the powerplant false Electrical energy being absorbed by the transformers in the grid false Single