click on Run Now. Wire Resistance and Ohm’s Law Procedure Part I Wire Resistance: open the PhET Simulation Electricity‚ Magnets‚ and Circuits Resistance in a Wire. As wire length (cm) increases‚ the resistance (Ω) _increases________________ As wire area (cm2) increases‚ the resistance (Ω) _____decreases_____________ As wire resistivity (Ωcm) increases‚ the resistance (Ω) ____increases___________ Procedure Part II: Ohm’s Law: Electricity‚ Magnets‚ and Circuits Ohm’s Law mA is milliamps
Premium Incandescent light bulb Electric current Volt
Peaceful resistance to laws positively affects society. By following a law one agrees with it. For the most part laws are just and by following them one can contribute positively to society‚ but there are unjust laws. By following an unjust law simply to prevent personal harm one is agreeing to the terms of the law. In agreeing to the law it is strengthened and others are more likely to follow. It is in this way that “injustice anywhere is a threat to justice everywhere” (Luther) due to the
Premium Civil disobedience Nonviolence Nonviolent resistance
Investigating the resistance of a wire. Planning For this investigation there are a number of variables that can be chosen to change or keep the same‚ these are: · Length of the wire. · Diameter of the wire. · Type of the wire. · Temperature of the wire. Scientific explanation. All electrical conductors resist current through them to some extent. This is resistance and this affects the size of the current flow. The main dependence of resistance are: § It’s Length. § It’s Thickness
Premium
Theory behind my experiment Thickness (cross sectional area of the wire)‚ length‚ and temperature all have some effect on the amount of resistance created in a wire. Another factor is the conductivity of the material we are using. Some metals are just more electrically conductive than others. As long as I use the same type of metal for each wire‚ my experiment will remain fair. Cross Sectional Area The thicker the wire‚ the less resistant it is. This is because there are more electrons in
Premium Electrical conductivity Copper Electric charge
meters of varnish insulated copper wire with diameter 0.5mm PVC pipe- 300mm length 3- 1.5 volt batteries with casing 3- jumper wires with crocodile clips Multimeter Scissors Infrared Thermometer 1 roll of insulation tape Procedure 1. Wind the wire around the PVC pipe. Fix the ends of the wires to the insulation tape. Remove about 3 cm. of insulation from the wire using the tips of the paper knife. Measure the resistance of the wire using the ohm setting on the multimeter
Premium Electric current Volt Copper
factors affect the resistance of a conductor‚ and the mathematical relationship that exists between these variables. Hypothesis Copper wires would be a better conductor than nichrome wires because it would yield less resistance when they have same cross-sectional area‚ length and temperature. Resistance would be increased when length wires increased. Resistance would be increased when cross-sectional area of wires decreased. Resistivity of wires is a factor of affecting the resistance. Background
Premium Resistivity Electrical resistance Electric current
Does peaceful resistance affect our laws positively or negatively? In fact peaceful resistance has a positive impact on our laws. Just like publicity‚ non-violence is supposed to lower the bars of negative effects‚ impacting our laws. The relationship between the american public and laws enforcement has always‚ had a violent nature that as a country has never been able to escape. Yet‚ throughout the years the people of this country have used peaceful resistance to change so much of the mistakes‚
Premium Civil disobedience Martin Luther King Jr.
to submit an article on new technology (e.g. mobile phone‚ the Internet‚ Facebook) and how it affects young people’s relationships with family and friends. We will publish one article from each country. You should also make some suggestions on how young people can eliminate the negative impact of technology on their relationships. Write your article. Write approximately 220 – 260 words. How does Facebook affects relationships? In today’s advanced technological society‚ it is disputable that the importance
Premium Interpersonal relationship Youth Family
Name: Period: Circuits-Circuit Analysis Base your answers to questions 1 through 3 on the information and diagram below. 4. A 9-volt battery is connected to a 4-ohm resistor and a 5-ohm resistor as shown in the diagram below. A 3.0-ohm resistor‚ an unknown resistor‚ R‚ and two ammeters‚ A1 and A2‚ are connected as shown with a 12-volt source. Ammeter A2 reads a current of 5.0 amperes. What is the current in the 5-ohm resistor? 1. 1.0 A 2. 1.8 A 3. 2.3 A 4. 4.0 A 1. Determine the equivalent
Premium Circuit diagram Electric current Resistor
Coursework - Resistance of a Wire Coursework Introduction (Theory) In this piece of Coursework I am going to investigate the resistance in a piece of wire. Resistance is the force that slows down the flow of electrons; this can be due to electrons colliding. The total length of the wires will affect the amount of resistance. The longer the wire‚ the more resistance that there will be. This is also true for thickness of wire; the thinner the wire is the more resistance. Resistance is measured
Premium Electric current Ohm's law Electrical resistance