OAR Resistor Flashcards
The rate at which the charge flows through a conductive material is?
Current
A current can be thought of as the number of….
electrons passing through a point in a length of time.
How is a current measured?
Amperes (A)
Each unit of Amperes is measured approximately?
6.24 X 10^18 electrons per second,
Electric current carries energy much like what?
Moving balls carry energy.
The push behind electrical work and similar to gravitational potential energy is?
Voltage
What is it called when it generates a voltage?
Voltage Source
What are examples of a voltage source? (2 items)
Battery
Generator
How is voltage measured in?
Volts (V)
The amount of pressure to slow electrical current is called?
Resistance
How is electrical resistance much like friction? (2 items)
Resists Flow
Dissipates Energy
Different objects have the same resistance..
F Different resistance
An electrical component designed to have a specific resistance.
A resistor
How is resistance measured in?
Ohms (horse shoe like symbol)
If you plot the voltage of a simple circuit, the similarities of what appear?
Gravitational Potential Energy
This law explains the relationship between the voltage, current, and resistance.
Ohm’s Law
What is the formula for Ohm’s Law?
Voltage (V) =Current (I) X Resistance (R)
A circuit with two or more resistors on the same path.
Series Circuits
The same circuit runs through both of what?
Resistors
During a series circuit, what will split between the resistor?
Total Voltage Drop
The resistor in series can be added together to make what?
An equivalent basic circuit.
Equivalent Basic Circuit Formula
R-(equiv) + R_1 + R_2
