Current And Voltages

Introduction to Electronics Unit One: DC Circuits Section Three Current and Voltage

Current, Voltage and Power ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Current ,[object Object],[object Object],[object Object],[object Object],[object Object]

What is an Ampere? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Calculating Amperes (I) ,[object Object],[object Object],[object Object]

Answers to Ampere Questions Q = 35C t = 6s I = 4A Q = 7A(5s) t = 30C / 5A I = 24C / 6s Q = It t = Q/I I = Q/t I = 7A Q = ? t = 5s I = 5A Q = 30C t = ? I = ? Q = 24C t = 6s

Voltage ,[object Object],[object Object],[object Object],[object Object]

Energy Types ,[object Object],[object Object],[object Object],[object Object],[object Object]

Increasing Voltage Using Cells & Batteries ,[object Object],[object Object],[object Object],[object Object],[object Object]

Increasing Current using Cells & Batteries ,[object Object],[object Object],[object Object],[object Object],[object Object]

Calculations ,[object Object],[object Object],E T = E 1 = E 2 = E 3 E T = 1.5 V = 1.5 V = 1.5 V E T = 1.5 V E T = E 1 + E 2 + E 3 E T = 1.5 V + 1.5 V + 1.5 V E T = 4.5 V

Increasing Current and Voltage ,[object Object]

Power Power is the amount of energy used when a circuit is complete, in operation. Power can be calculated for time periods: watts per seconds or watts per hour. The word power is represented in formulas using the letter P. Power is measured in watts. Components in a circuit either consume, transfer, store, or transform power to another energy form. - Resistive components consume power. - Conductors transfer power. - Cells and capacitors store power. - Speakers, LEDs, and motors transform power.

Calculating Power ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Answers to Power Questions I = 3A E = 5V P = 27 watts I = 60 watts / 20V E = 75 watts / 15A P = 3A(9V) I = P/E E = P/I P = IE P = 60 watts I = ? E = 20V P = 75 watts I = 15A E = ? P = ? I = 3A E = 9V

Assignments ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Click on home section. Content for all levels. Little bit of everything DC circuits. Excellent. All Grades http://www.ndt-ed.org/EducationResources/HighSchool/Electricity/hs_elec_index.htm Content Grades Web Site

Image Bibliography ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Current And Voltages

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