Physics Lab : Rc Circuit Lab

This project has many applications and many future expansions and functions that can be added on. By having a variable floating DC power supply, 7Hz-6 KHz function generator, and oscilloscope with leads connecting to any circuit built, the comprehensive hands-on learning tool would be ideal for most DeVry students.

Students in an AP Physics lab perform an electrostatics experiment involving two charged spheres suspended

The objective of this lab was to observe the behavior of a capacitor while charging through a resistor. Overall, the objective of the lab was achieved since an exponential curve was obtained from a charging capacitor.

For the first part of the lab, our goal was to calculate the time constant, , of an RC circuit. We made an RC series circuit and connected it to the Rigol wave generator to produce a square waveform for current. Then, we collected data of the voltage across the capacitor at different points in time using a myDAQ and the 4BL application. In order to find the time constant, we linearized the voltage we measured across the capacitor and then performed a linear regression on the data. The equation for the voltage across the capacitor as a function of time is:

A majority of Americans are constantly worried about bills. One of the bills people are most concerned about is the electricity bill. The electric bill varies each month based on the usage of different electrical uses and appliances. Also, have you ever wondered why when you turn off one light, the light in the other room stays on? Well I will explain the type of electric circuits that is used to ensure that. I will also explain the relationship between what you use and how the duration of use can have an impact the cost of the electric bill.

20. Because the magnetic force which deflects the electrons is defined by F = q * v x B

1A. Matter is a type of vaporation of a liquid that appears from the surface of a liquid into a gassy period which is not soaked with the evaporating essence. Another type of vaporation is boiling, which is represented by bubbles of wet vapor in the liquid point.

2. Try increasing the resistivity of the resistor, ρ. How does this change the “look” of the resistor? Describe how that relates to the formula you just wrote (direct, indirect relationships, etc.). What happens to the value of “R” (Resistance)? Is this something that can be changed in a resistor that you would buy in a store to use in a circuit?

A car in a roller coaster moves along a track that consists of a sequence of ups and downs. Let the x

condition is given in Fig. 8, it can be seen that the output voltage takes nearly one cycle to settle whereas

Light passed through a transmission grating is often sent in all directions due to interference. The grating acts as a new wave source and causes the light to travel in different paths. Equation 1 below shows the relationship between path difference and light direction due to constructive interference. D represents the line spacing and sinƟ=a/c according to the drawing below.

In this activity, the marbles represent the narrow beam of alpha particles used to determine the structure of atoms, the unknown object represents the atoms that Rutherford studied, the cardboard represents the gold foil that was made up of gold atoms and the paper represents the approximate path that the alpha particles bounced off of or went through the gold foil at that Rutherford observed.

The amount of tablets did effect the temperature of the water. Our findings made our hypothesis incorrect. The temperature of the water did increase as the number of the tablets increased also. In this experiment, the finding were quite surprising, simply because I thought that the temperature of the water will decrease as the amount of the number of tablets increased. In the real world I feel like this information would be beneficial, because it shows the reaction of an acid plus a base mixed with water.

X-ray use for diagnosis – Describe example of the use of an X-ray for diagnosis including IMAGE

1. How well does the appearance and solubility, of iodine and zinc respectively compare with information presented in the CRC handbook of chemistry and Physics? Our results for the appearance and solubility of iodine and zinc were very similar to the results given on the table. The only thing that was different was the result for Mineral oil.