Kirchhoff - Study guides, Revision notes & Summaries

This is a summery of electrical circuits, in the context of engineering. It covers first year work and includes: -voltage, current, resistance -power -ideal sources (independent and dependent) -Ohm, Kirchhoff current and voltage law -resistance, current, voltage in parallel and in series -delta to wye conversion (wheatstone bridge) -node voltage method -mesh current method -source transformers -Thevanin and Norton equivalent -super position -maximum power -inductor -capacitor -m...

MECP PRACTICE EXAM QUESTIONS & ANSWERS 2024/2025 To find voltage drops on Amplifier grounds, what setting should be used on the DMM while loading down and testing between the amplifier ground and the vehicles chassis ground point? - ANSWERSDC volts If an insufficient ground in an amplifier and is measured under load (i.e. While typical current is flowing), it will show a difference of potential between which points listed? - ANSWERSBetween the (-) negative battery post and the (-) negati...

How many amps of current would flow through the circuit in the figure provided? - Answer 4.14 The total resistance of equal resistors in parallel, each with a value off 10 ohms, is - Answer 2.5 The voltage across the parallel resistors shown in the figure provided is - Answer 100v According to Kirchhoff's voltage law, the total voltage drop in a circuit is equal to the - Answer voltage applied to the circuit The total voltage in a circuit with voltage drops of 30V, 40V...

A series circuit has three resistors of 4 ohms each. The voltage drop across each resistor is 4 volts. Technician A says that the source voltage is 12 volts. Technician B says that the total resistance is 18 ohms. Which technician is correct? Tech A Tech B Both Neither → Tech A A vehicle has four parking lights all connected in parallel and one of the bulbs burns out. Technician A says that this could cause the parking light fuse to blow (open). Technician B says that it would de...

To read low currents, its okay to wrap wire around the jaws of an ammeter to multiply reading? - ANSWERYes What does Kirchhoff's voltage law state? - ANSWERThe sum of the voltage drops, in a series circuit, is equal to the applied voltage. Draw a Wye or Star configured three phase transformer with a 480 volt line. - ANSWER What does the acronym "ELI" stand for? - ANSWERThat voltage leads current If you have a 40 VA transformer with a 24 volt secondary, what size fuse is need...

The voltage drop across the parallel resistors shown in the figure is? - Answer 17.3 volts What is the total resistance of the circuit in the figure? - Answer 24.17 ohms How many amps of current would flow through the circuit in the figure? - Answer 4.14 What is the total resistance of the three resistors in parallel with values of 2 ohms, 8 ohms, and 14 ohms? - Answer 1.44 ohms What is the resistance of a light bulb that uses 15 watts of power when placed across a 15-vol...

Which statement is NOT true about a loop? (Kirchhoffs Law) -CORRECT ANSWER-A loop can be traced in only one direction Kirchhoff's Voltage Law States? -CORRECT ANSWER-In a loop, the algebraic sum of the voltage drops and voltage sources equals zero Kirchhoffs Current Law States? -CORRECT ANSWER-The sum of current into a point equals the sum of the currents out To indentify a complex circuit, look for a circuit where... -CORRECT ANSWER-Charge tries to flow into two directions Substite...

Water Conduit sizes are the same as what other kind of pipe? What does Rt stand for? Total Resistance Rt=R1+R2+R3+R4........ What is the formula for total resistance in a series circuit? Total Resistance Helps determine how much power is needed to perform the work required. 30 How much is total resistance in this circuit? Ohm's Law Formula that allows you to calculate voltage, current, or resistance as long as you know two of the three variables. 30 How much...

Chapter 1 description & Electronics Technician Exam 89 Questions with Verified Answers Electricity - CORRECT ANSWER Energy due to electric charges at rest or in motion that can be transmitted to produce effects such as heat, light, motion or sound. Electric Charge - CORRECT ANSWER An electrical property of matter that creates electric and magnetic forces and interactions. Positive (+) - CORRECT ANSWER An electric field lacking electrons. Negative (-) - CORRECT ANSWER An electric fiel...

Electrical Phase 3 Module 1 Exam Questions and Complete Solutions The ampacity of a conductor is defined by the NEC to be the current in amperes, a conductor can carry continuously under the conditions of use without exceeding ______. a) its temperature rating b) the allowable voltage drop limitations c) its melting point d) its rated voltage - Ans: a appliance - Ans: Utilization equipment, ie. washing machine The continuous load supplied by a circuit should not exceed 80% of the br...