What is Resistance? Electrical ResistanceElectrical resistance is one of the key attributes in an electrical circuit – it determines the current flowing for a given voltage.Resistance Tutorial Includes: What is resistance Ohms Law Ohmic & Non-Ohmic conductors Resistance of filament lamp Resistivity ...
How long L is a tungsten wire if it has a diameter of 0.157 x 10^{-3} m and a resistance of 2.17 kilo-ohms? The resistivity of tungsten is 5.62 x 10^{-8} \Omega m. What is the resistance R of a 63.9-m-long aluminum wire that has a diameter of 8.21 mm?...
Volts, ohms (V/Ω): this is where your red probe lead will spend most of its time, since it usually measures everything apart from current. If a multimeter has fewer than four inputs and has milliamps, it will usually be included on this input. Usually marked red. 10A(10 amps): yo...
有以下程序： #define N 20 fun(int a[],int n,int m) { int i,j; for(i=m;i>=n;i--)a[i+1]=a[i]; } main() { int i,a[N]={1,2,3,4,5,6,7,8,9,10}; fun(a,2,9); for(i=0;i<5;i++)printf("%d",a[i]); } 程序运行后的输出结果是__...
First we have to understand the resistance of a wire for solving this problem: The resistance of wire is depends upon the material out of which the wire is made and also depends upon the length and cross-section area of the wire. SupposeLis the length o...
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DC resistance—DC resistance is a measurement of a conductor’s ability to resist the flow of electrical current. Measured in ohms (Ω), DC loop resistance is the DC resistance of two conductors in a pair looped (connected) at one end of the link. For ...
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What is Resistance? The resistance can depend on theOhm’s lawwhich is discovered by the German physicist namely “Georg Simon Ohm”. Ohms Law TheOhm’s lawcan be defined as; the voltage across a resistor is directly proportional to the current flow through it. The Ohms law equation is; ...
A 1.0:1 VSWR is a perfect match. That means the load impedance is exactly 50 ohms. A 2.0:1 VSWR is obtained when the load impedance is either 25 ohms or 100 ohms. Because most ham transceiver will deliver full power with a load VSWR of up to 2.0:1, this value is usually considered...