Study for amatrol exam 2024 latest update(fully solved&updated)dowload to pass

A common inductor found in fluorescent light fixtures is a ________. Ballast Capacitance is measured in ___________. Farads A concept of a magnetic field being formed around a conductor when current flows through it is called ___________. Electromagnetism Which of the following is the correct formula for calculating total parallel inductive reactance is a parallel circuit? A. XLT=XL1+XL2+XL3... B. XLT= XL1 x XL2 x XL3... C. XLT = 1/[(1/XL1)+(1/XL2)+(1/XL3)...] D. XLT = (1/XL1) + (1/XL2) + (1/XL3)... C Which of the following is the total series capacitance reactance formula? A. XCT = XC1 x XC2 x XC3... B. XCT = XC1 - XC2 - XC3... C. XCT = XC1 + XC2 + XC3... D. XCT = 1/[(1/XC1) + (1/XC2) + (1/XC3) C Which of the following is a type of capacitor? A. Electrolytic B. Nonpolarized C. Variable D. all of the above E. none of the above D. all of the above The apparent resistance to AC by a capacitor is called__________. Capacitive reactance The formula for calculating total parallel capacitance is_______. CT = C1 + C2 + C3 ___________ affects a DC circuit only when the current is first turned on,turned off,or when there is a change in the load resistance. Inductance A coil that opposes any change in current flow is called a(n)__________. Inductor In a power supply that converts an AC input to generate a DC output, a capacitor is commonly used to __________. filter the rectifier´s pulsating DC output The energy stored by a capacitor is called a(n) _________. Electrostatic charge The resistance provided by an inductor in an AC circuit is called __________. Inductive Reactance Which of the following is the correct formula for calculating total series inductance? A. LT = L1 + L2 + L3... B. LT = L1 x L2 x L3... C. LT = (1/L1) + (1/L2) + (1/L3) D. all of the above E. none of the above LT = L1 + L2 + L3 Which of the following is NOT an example of an electromagnetic device? A. Solenoid B. Relay C. Resistor D. Motor C. resistor Inductance is measured in _________. henrys One of the effects a capacitor has in a DC circuit is that it will_________. charge a voltage equal to the source voltage A time-delay relay that uses an RC timing circuit is called a(n)__________. solid state, time-delay relay A variable resistor is different from a fixed resistor because it __________. can be adjusted which of the following is NOT a step for troubleshooting a parallel circuit to find a short? A. Disconnect the power supply B. Look for visible signs of damage C. Connect an ohmmeter across the main line D. All of the above E None of the above A short circuit in the branch of a parallel circuit will ___________. a. cause an excessive amount of current to flow b. damage or destroy the power supply c. cause a short circuit across the power supply d. all of the above e. none of the above D. all of the above In order for a firm voltage divider to operate properly, the load resistance value should be at least _________ times greater than resistance value of the voltage divider bleeder resistor. 10 What is the result when a branch of a parallel circuit has an open? The rest of the circuit will operate but with a reduced total current. in a series parallel circuit components that are connected in parallel will display characteristics of _________. parallel circuit Which of the following is not one of the seven general steps for solving a combination circuit. a. calculate the equivalent resistance for all parallel sections. b. calculate the total resistance of the circuit. c. calculate the total current d. calculate the RC time constant d. calculate the RC time constant