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reactance and resistance are both measured in ohms because both are opposition to current flow. the only difference is resistance is the real component while reactance is the imaginary component.
Wiki User
∙ 11y ago
Wiki User
∙ 12y agoBecause one ohm is the unit of resistance that one ampere will develop one volt across it. This is how it is defined.
Ohm's Law: Resistance equals voltage divided by current.
If you reduce this to fundamental units, knowing that voltage is joules per coulomb and current is coulombs per second, you can see that resistance is joules-seconds per coulomb squared. Who wants to use such a complex unit when the ohm will suffice. This is how it is defined. Its as simple as that.
Wiki User
∙ 13y agoresistance = voltage/current
use a multimeter
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Why does generally resistors are in kilo ohms or megha ohms why not in milli or micro or pico ohm?
First of all, let's get the units of measurement correct, which are kilohms (not 'kil ohms'), megohms(not 'magha ohms'), milliohms, and picohms(not 'pico ohms').Resistors are generally rated in ohms, kilohms, and megohms because, generally, these are the values most widely needed in practical applications.
Given 4 resistors each have equivalent resistance of 100 ohms show how these resistors might be combined to produce an equivalent resistance of a 40 ohms b 250 ohms c 100 ohms?
a) Put 2 of the resistors in series to make a 200 ohm resistor. Then put the 100, 100, and 200 ohm resistors in parallel for 40 ohms. b) Put 2 resistors in parallel for 50 ohms. Put the 50, 100, and 100 ohm resistors in series for 250 ohms. c) Put 2 resistors in parallel for 50 ohms. Repeat with other 2 resistors. Put the two 50 ohm resistors in series for 100 ohms. This configuration can withstand 4 times the wattage of each individual resistor.
What Transistor to use from 10 ohm to 4 ohm?
We do not use transitors from 4 to 10 ohms. We use resistors.
The total resistance for this circuit if all resistors are 200 ohms is?
400 ohms
Four resistors having a value of 100 ohms are connected in parallel what is the total resistance of the circuit?
What would the measured ohms be for two 100 ohm resistors wired in series? Two 100 ohm resistors wired in series measure 200 ohms.
Why does generally resistors are in kilo ohms or megha ohms why not in milli or micro or pico ohm?
First of all, let's get the units of measurement correct, which are kilohms (not 'kil ohms'), megohms(not 'magha ohms'), milliohms, and picohms(not 'pico ohms').Resistors are generally rated in ohms, kilohms, and megohms because, generally, these are the values most widely needed in practical applications.
Given 4 resistors each have equivalent resistance of 100 ohms show how these resistors might be combined to produce an equivalent resistance of a 40 ohms b 250 ohms c 100 ohms?
a) Put 2 of the resistors in series to make a 200 ohm resistor. Then put the 100, 100, and 200 ohm resistors in parallel for 40 ohms. b) Put 2 resistors in parallel for 50 ohms. Put the 50, 100, and 100 ohm resistors in series for 250 ohms. c) Put 2 resistors in parallel for 50 ohms. Repeat with other 2 resistors. Put the two 50 ohm resistors in series for 100 ohms. This configuration can withstand 4 times the wattage of each individual resistor.
What Transistor to use from 10 ohm to 4 ohm?
We do not use transitors from 4 to 10 ohms. We use resistors.
The total resistance for this circuit if all resistors are 200 ohms is?
400 ohms
How do you draw this you have three 20 ohm resistors available. how would you connect these three resistors to produce a 30 ohm equivalent you must use all three resistors?
2 in parallel (= 10 ohms) and the third in series.
The total resistance of a series circuit containing three 10 ohm resistors is ohms.?
30 ohms
What is the equivalent resistance of a pair of 8 ohm resistors in series circuit?
Two eight-ohm resistors in series would have a total resistance of 16 ohms. Two eight-ohm resistors in parallel would have a total resistance of four ohms.
Four resistors having a value of 100 ohms are connected in parallel what is the total resistance of the circuit?
What would the measured ohms be for two 100 ohm resistors wired in series? Two 100 ohm resistors wired in series measure 200 ohms.
If 3 resistors of 56 12 and 33 ohms are in parallel what is there combined resistance?
The combined resistance is 7.6049 ohms.
A 24 volt battery supplies three devices wired in parallel that each have a resistance of 9 ohms. What is the voltage drop across each device?
A simple circuit has three resistors connected in series. The resistors are 14 ohms 12 ohms and 9 ohms. What is the total resistance of the circuit?
What is the total resistance of a series circuit that contains two resistors having values 28 ohms and 56 ohms?
28 + 56 = 84 ohms
What is the current in a circuit with 9 volts 3 ohms 2 ohms and 4 ohms?
The current in the circuit will depend on how the three resistors are wired. Series? Parallel? Series parallel? With the resistors in series, 3, 2 and 4 ohms will add to 9 ohms. As I = E/R, I = 9 V / 9 ohms = 1 A. With the resistors in parallel, the 3, 2 and 4 ohm resistors will draw 3 A, 4.5 A and 2.25 A respectively, and the total current will be the sum of the branch currents, or 3 A + 4.5 A + 2.25 A = 9.75 A. There are 3 different series parallel circuits possible, and more investigation will be necessary to solve for them.
