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PHYSICAL SCIENCE FINAL EXAM QUESTIONS WITH COMPLETE SOLUTIONS VERIFIED GRADED A+
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PHYSICAL SCIENCE FINAL EXAM QUESTIONS WITH COMPLETE SOLUTIONS VERIFIED GRADED A+ Electric Current The rate of charge flow, measured in Coulombs per second (C/s), also known as Amperes (A). -The current is opposite of the flow of electrons 2 Primary Requirements of an Electric Circuit 1. Vo...

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  • May 10, 2024
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  • 2023/2024
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PHYSICAL SCIENCE FINAL EXAM QUESTIONS WITH COMPLETE

SOLUTIONS VERIFIED GRADED A+


Electric Current

The rate of charge flow, measured in Coulombs per second (C/s), also known as

Amperes (A).



-The current is opposite of the flow of electrons

2 Primary Requirements of an Electric Circuit

1. Voltage Source

2. Circuit [low to high voltage (closed loop)]

Circuit Diagram

-Graphical Representation of an electrical circuit, illustrates the path of desired electrical

circuit

Series Circuit

An electric circuit connected so that charges move in "series" first going to one resistor

then the next



-In a series circuit, the current through each of the components is the same, and the

voltage across the circuit is the sum of the voltages across each component.

-In a series circuit, every device must function for the circuit to be complete. One bulb

burning out in a series circuit breaks the circuit

, Parallel Circuit

A circuit composed of two (or more) components connected in parallel.



-In a parallel circuit, the voltage across each of the components is the same, and the

total current is the sum of the currents through each component

-In parallel circuits, each light has its own circuit, so all but one light could be burned

out, and the last one will still function.

-Parallel circuits (generally) are much brighter

-Current increases with each additional pathway

Which type of circuit has brighter bulbs?

Parallel

Which type of circuit requires the most current flow through the battery?

Parallel

If two bulbs are in series, what can you say about the current flow through them?

The current flowing through them is the same

The Junction Rule

The sum of the all currents flowing in to a junction is equal to the sum all currents

flowing out of the junction, based on the Conservation of Charge



-Applies to a current at a junction of 3 or more wires



Formula: Ia= Ib + Ic

Direction of Current Flow in Parallel Circuits

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