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You need a d.c. variable-voltage supply, a voltmeter, an ammeter, and a resistive load. The voltmeter must be connected in parallel with the resistive load, and the ammeter in series.
Gradually increase the voltage across the load, in discrete (uniform) steps. For each step, note the values of voltage and corresponding current.
Use your results to plot a graph, with voltage along the horizontal axis, and current along the vertical axis.
If the resulting graph is a straight line, then the load is 'linear' or 'ohmic', and obey's Ohm's Law. If the resulting graph is a curve, then the load is 'non-linear' or 'non-ohmic', and does NOT obey Ohm's Law.
The reciprocal of the slope of the graph, at any point along its length, represents the resistance at that point. For a straight-line graph, the resistance will be constant (obeying Ohm's Law); for a curved-line graph, the resistance will vary along its length (does no obey Ohm's Law).
Remember that Ohm's Law is not a universal law, in other words not all loads obey Ohm's Law - these include metals such as tungsten (used to make the filaments of incandescent lamps), electrolytes, and most solid state devices, such as diodes, etc.
What else can I help you with?
What experiment did Newton conduct to demonstrate his first law of motion?
Sir Isaac Newton conducted the experiment of a ball rolling on a flat surface to demonstrate his first law of motion, also known as the law of inertia.
Which term best describe the phrase '' a description of what happens in nature''?
law
How do you calculate 1.67 ohms?
ohms law.
How can one effectively demonstrate Newton's second law of motion?
To effectively demonstrate Newton's second law of motion, one can conduct an experiment by applying a force to an object and measuring the resulting acceleration. According to the law, the acceleration of an object is directly proportional to the force applied to it and inversely proportional to its mass. By varying the force and mass of the object in the experiment, one can observe how the acceleration changes in accordance with the law.
How do you find conductance using ohms law?
To find the conductance using ohms law,you take the inverse of the resistance(/R)
What are some fun and educational experiments for kids that demonstrate Newton's second law of motion?
One fun and educational experiment for kids to demonstrate Newton's second law of motion is the balloon rocket experiment. In this experiment, kids can blow up a balloon and attach it to a straw with tape. When they release the air from the balloon, the force propels the balloon forward, demonstrating how force (from the air escaping the balloon) can accelerate an object (the balloon) in the opposite direction. This experiment helps kids understand the relationship between force, mass, and acceleration, which is the essence of Newton's second law of motion.
What does the i stand for in ohms law?
Current
Do transformer violates ohms law?
no
Is ohms law heat and light?
No.
Why would an experiment not demonstrate the law of conservation of mass?
An experiment may not demonstrate the law of conservation of mass if there are sources of error, such as incomplete data collection or unaccounted-for mass changes (e.g., evaporation, chemical reactions) during the experiment. Additionally, equipment malfunctions or improper experimental design could also lead to inaccurate results that do not align with the law of conservation of mass.
What kind of experiments can be conducted to demonstrate Newton's First Law of Motion?
One experiment to demonstrate Newton's First Law of Motion is the classic "inertia" experiment. This involves placing an object on a flat surface and then quickly pulling the surface out from under the object. The object will remain at rest or continue moving in a straight line due to its inertia, which is the tendency of an object to resist changes in its motion. This experiment shows how an object will stay in its current state of motion unless acted upon by an external force, as described by Newton's First Law.
Formula for ohms law?
ohms=amps/volts Amps= volts/ohms Volts = Amps*Ohms
