Resistors in parallel - Study guides, Class notes & Summaries

Which one of the following statements is true concerning the spacing of the electric field lines in the vicinity of two point charges of equal magnitude and opposite sign? A) The spacing indicates the direction of the electric field. B) The spacing does not depend on the magnitude of the charges. C) The spacing is large when the magnitude of the charges is large. D) The spacing indicates the relative magnitude of the electric field. E) The spacing is small when the magnitude of the charge...

When testing a water level supervisory switch serving a pressure tank a signal shall indicate if the water level _____________from the required level (NFPA 72, Table 14.4.3.2 17 (j) (4) - rises or falls over 3 inches If combination audible/visible appliances are installed the location of the installed appliance shall be determined by the requirements of _______. (Nfpa 72 18.4.8.1) - the visible appliance What is the maximum number of 12 gauge THHN wires that can be installed in 1...

Image Production - ARRT X-RAY BOARD EXAM |Question and Answer| 100% Correct The resistance of electric flow through a circuit is measured in: A. Volts B. Amperes C. Ohms D. Joules *Ans* C. Ohms A circuit with a single path for electric current flow is defined as a(n): A. Parallel circuit B. Closed circuit C. Series circuit D. Open circuit *Ans* C. Series circuit The degree of resistance provided by an individual resistor within a circuit is measured in: A. Volts B. Watts C. Ohm...

HVAC Electrical Test Questions and Answers Rated A+ Current flow is the flow of electrons in the circuit impedance is opposition to alternating current flow like charges repel each other Any material that will readily release electrons is called a conductor the symbol for current is I Which of the following materials would best be suited for use as a semi-conductor silicone the safety ground conductor is usually color coded black (or bare or green & yellow stripe) An e...

When testing a water level supervisory switch serving a pressure tank a signal shall indicate if the water level _____________from the required level (NFPA 72, Table 14.4.3.2 17 (j) (4) Answer - rises or falls over 3 inches If combination audible/visible appliances are installed the location of the installed appliance shall be determined by the requirements of _______. (Nfpa 72 18.4.8.1) Answer - the visible appliance What is the maximum number of 12 gauge THHN wires that can be inst...

A series circuit with a voltage drop of 120 volts has a current of 24 amperes and two resistors in series. The first resistor has a resistance of 3 Ohms. What is the resistance in the second resistor? - ANSWER2 Ohms A transformer has a primary coil with 12 turns and a secondary coil with 4 turns. What is the turn ratio of this transformer? - ANSWER A step-down transformer with a turn ratio of 3:1 has a primary coil with 36 turns. How many turns does it have in its secondary coil? - ANSWER ...

Test Bank for College Physics 12e 12th Edition by Raymond A. Serway, Chris Vuille, John Hughes. Full Chapters test bank are included with answers (Chapter 1 to 30) Complete Guide 1. Units, Trigonometry, and Vectors. Standards of Measurements. Measurement Uncertainty and Estimation. Math Review. Vectors. Overview of Physics. 2. Motion in One Dimension. Displacement, Velocity, and Acceleration. Motion Diagrams and Graphs. One-Dimensional Motion with Constant Acceleration. Freely Falling Obje...

Electrical RECF Questions and Answers 100% Pass In a series circuit voltage is additive In a series circuit current is constant In a series circuit resistance is additive In a parallel circuit voltage is constant In a parallel circuit current is additive In a parallel circuit resistance is 1/1/R+Rn A.M. means amplitude modulation F.M. means frequency modulation Amplitude measures how high something is Frequency measures how much something happens in a given perio...

ETA certification test questions and answers 100% pass Which symbol is used for ohms of resistance? Ω A unit of energy is the: Joule Minute particles that make up all possible elements and still retain the unique chemical characteristics of the element are called: atoms A component whose value is measured in microfarads is a: capacitor Kirchoff's Voltage Law (KVL) states that the total voltage around a closed loop must be zero. True The pole of the magnet from which the ...

Stationary Engineer Electric Exam Questions and Answers 100% Pass An AC circuit consists only of a pure inductance and a power source. The relationship between the voltage and the current in this circuit is that the - Correct Answer ️️ - current lags the voltage The power factor of a load is equal to the ____________ power divided by the ____________ power. - Correct Answer ️️ -True ; apparent A 10-ohms and 20-ohms resistor are connected in parallel. The total line current drawn ...