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RESISTANCE. RESISTANCE. Ohm – Unit for resistance Circular Wires Circular mils 1000 mils = 1 inch. RESISTANCE. Malleability- property of a metal to be deformed by compression without cracking or rupturing.
Resistance. Challenge. Try and increase the temperature of 200 ml of tap water as much as possible in five minutes using the equipment provided. Looking down into an electric jug. Some examples of incandescent lights.
Resistance. and resistivity. Current. Current is sort of a vector Direction is constrained by conductor Restricted to forward or backward (+ or –). Resistance. Current does not flow unhindered Electrical resistance is analogous to friction or drag
Resistance. Antibiotics. What type of organism do they target? Bacteria What do they do to be effective ? Control Growth Kill bacteria When aren’t they effective? Viruses – use antivirals. Spectrums. Wide-spectrum Can target many different kinds of bacteria . Narrow-spectrum
Low at high frequency. Low at low frequency. Ω. Ω. f. f. Resistance. Impedance. Energy Storage. DC Direct Current. AC Alternating Current. Electric Field Capacitance. Magnetic Field Inductance. Resistor R Ohms. Reactance Z Ohms. Inductor L Henry. Capacitor C Farad.
Resistance. Electrostatic interaction. Fluid friction. A constant force leads to a constant current. No voltage. I=0. Higher voltage. F. I. Higest voltage. Resistance (2). No voltage. I=0. Voltage. F. I. U. Capacitor. +. +. I. -I. U. U. An „analogy“ to capacitor.
Resistance. Lesson 11. Resistance. The degree to which a substance opposes the flow of electric current through it. All substances resist electron flow to some extent. . Resistance. Conductors, such as metals, allow electrons to flow freely through them and have low resistance values.
Resistance. What is Resistance?. Resistance is a measurement of the frictional forces that must be overcome during breathing. It can also be described as the force (pressure) necessary to maintain a specific flow in a particular system. Bronchioles Vessels. What is Resistance?.
Resistance. OBJECTIVES. Become familiar with the parameters that determine the resistance of an element and be able to calculate the resistance from the given dimensions and material characteristics.