An Investigation of Ohm’s LawStephen McGill
(22044566)

3. 25Ω Resistor

How can you find the Resistance, R?

The equation for Ohm’s law is V=IR, where V is Voltage, I is Current and R is Resistance. To transpose this equation for Resistance, R, it would R=V/I. From the graph the y-axis is current, I (mA) and x-axis is Voltage, V (Volts). To calculate the resistance from the graph we have to calculate the gradient (gradient = difference in y values/difference in x values). As the answer for the...

...Experiment No: EM-1 Title: Ohm’s Law, Meters, Resistivity
I Purpose:
The basic of simple electrical circuits and measurements is learned. Also, investigating the dependence of the resistance of a wire on its length, cross-sectional area, and the material of which it is made. By examining electrical resistance (R) through a metal conductor, the voltage (V) and current (I) through the conductor, the following principles will be demonstrated:
1.) Ohm’s Law...

...Conclusion
Ohm's Law states that V=RI where V is the difference of potential at the poles of the element (measured in volts), R is the resistance of the element being tested (a resistor in this case, measured in ohms), and I is the current passing through the circuit (measured in milliamps). When the Y-intercept on the attached voltage drop vs. current in the conductor graph is examined, it is observed that the the ranges of R values overlap, also the expected...

...Investigating Ohm’s Law
Introduction/Background
Current is the rate of the flow of energy; an electric current is the flow of electrical charge around the circuit. It is measured in ohms (Ω). The quantity of flow in an electric circuit is dependent on the ohmic value of the resistance. The amount of resistance in a given circuit is stationary and is not dependent on the current. “The higher the voltage of a battery, the more potential energy per coulomb of...

...Research Paper – Georg Ohm
Georg Ohm was a German physicist born in March of 1789.
Georg came from a Protestant family. His father who was a locksmith Johann Wolfgang Ohm, and his mother who is Maria Elizabeth Beck, was the daughter of a tailor. Even though his parents had not been really educated at the time, Ohm's father was a very wise man who had educated himself and his son Georg.
In my research I found out that he wrote an elementary...

...wire will increase.
Background:
Some materials have consistent resistance at the same temperature regardless of how much voltage is applied through them, these materials are known as ‘Ohmic’ resistors. This is because they are said to obey Ohm’s law, which states that if a voltmetre is used to measure the voltage (V) of an unknown resistance (R), and an ammetre is used to measure the current (i) through the same unknown resistance, then ‘R’ would be given by R = V/i . The...

...CONFIRMING OHM’S LAW
BY ALEX KUCHMENKO
9.1
Aim – To Confirm Ohm’s Law through experimentation.
Hypothesis – The More Ohms the resistor has, the weaker the current will become.
Materials – Power pack, ammeter, voltmeter, resistors, connecting wires.
METHOD –
1. POWER PACK
POWER PACK
RESISTOR
RESISTOR
VOLTMETER
VOLTMETER
AMMETER...

...OhmsLawOhmsLaw
Thomas More College
Thomas More College
How it applies to different materials
Lucas Cosmidis 11 physics
How it applies to different materials
Lucas Cosmidis 11 physics
Aim/Purpose
The aim is to investigate whether 12v light bulb and a ceramic resistor are either non- ohmic or ohmic. From results calculations can be made to find the resistance produced and then graphed indicating whether the light...

...New York City College of Technology
Ohm’s law & resistors in parallel & in series
Lab 4
Class: PHY 1434-E475
Due date: March, 13 20144
Group Names: Hisham Sageer
Objectives:
Our object is to confirm Ohm’s law by analyzing the dependence of the electrical current as a function of voltage and as a function of resistance. Also, we studied the current flow and voltage in series and parallel. Finally, the lab determined the...