0
If resistor X has the same length and is made of the same material as resistor Y but has twice the diameter. Resistor X has the blank resistance of resistor Y?
Wiki User
∙ 14y ago
R = r*L/A
where:
R = resistance
r = material resistivity
L = length
A = area
Since you are doubling the diameter, you are increasing the area by a factor of 4, so Y will have 1/4 the resistance of X.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
What is a contact resistor?
A: I snot a resistor but rather an unwanted resistance on a contact
What does r mean in a resistor?
R stands for the resistance.
What resistance must be connected in parallel to 6.0-ohm resistor to reduce the combined resistance to 15-ohm?
No such resistor exists. Any resistor placed in parallel with a 6.0 ohm resistor is going to reduce the combined resistance below 6.0 ohms.
What component that makes it more difficult for current to flow?
IF there is a Resistor
Does a variable resistor have a bias?
A variable resistor means that the resistance can be varied, usually by using a slide. A fixed resistor can not be varied.
What is a material which allows electricity to flow through it but with but with resistance?
A "resistance" or "resistor".
What is the difference between an ohmic resistor and a non-ohmic resistor?
A non-ohmic resistor doesn't have a constant resistance. A ohmic resistor has a constant resistance.
Where would you find a material which is a resistor?
Where would you find a material which is a resistor? You can find a resistor material in Europe
Is resistor measured in amps?
No, a resistor isn't measured at all. A resistor has a quality called "resistance" - and that value is measured. Resistance is measured in Ohms.
What is a contact resistor?
A: I snot a resistor but rather an unwanted resistance on a contact
What does r mean in a resistor?
R stands for the resistance.
What resistance must be connected in parallel to 6.0-ohm resistor to reduce the combined resistance to 15-ohm?
No such resistor exists. Any resistor placed in parallel with a 6.0 ohm resistor is going to reduce the combined resistance below 6.0 ohms.
Why resistor should disconnected from the circuit when measured the value of resistor?
if not disconnected you will measure the resistance of the circuit in parallel with the resistor.
What is the rule for voltage across each resistor?
Volt across a resistor = resistance x current through the resistor.
What are resistor values defined by?
Resistor value is defined by the Resistance the resistor offers in Kilo ohms/ohms value given by color codes on the resistor.
Describe the purpose of the coloured bands on a resistor?
The purpose of colored bands on a resistor is to tell whoever is installing the resistor the amount of resistance that particuliar resistor has.
What has the least amount of resistance a semi conductor insulator resistor or a conductor?
Traditionally, a conductor has the least resistance of the three, followed by the semiconductor and finally the resistor.
