Table of Contents
- 1 What happens to resistance if wire is stretched thrice its length?
- 2 How does the resistance of a wire change when a its length is tripled b Its diameter is tripled c its material is changed to one whose resistivity is three time?
- 3 What happens when a wire of resistance 1 ohm is stretched?
- 4 What is the resistance of a two-wire resistor?
What happens to resistance if wire is stretched thrice its length?
Answer: The resistance of a wire is inversely proportional to its area and directly proportional to its length. When the length is tripled then resistance will also become three times.
How does the resistance of a wire change when a its length is tripled b Its diameter is tripled c its material is changed to one whose resistivity is three time?
The resistance of a wire is directly proportional to its length and inversely proportional to its area (or square of inverse of diameter).
When a wire is stretched to two times of its length the longitudinal strain produced in it is?
If a wire is stretched to double of its original length, then the strain in the wire is. Strain =2l2=2 Ans.
How does the resistance of a wire change when 2 Mark I its length ID tripled II Its diameter is tripled?
Resistance becomes 3 times.
What happens when a wire of resistance 1 ohm is stretched?
A wire of resistance 1 ohm is stretched to double its length. What is the new resistance? Given: a wire of resistance 1Ω is stretched to double its length. Now after the act of stretching the volume remains constant. Was this answer helpful?
What is the resistance of a two-wire resistor?
The resistance of the two times longer wire will be 4 ohms, just as if the original wire section were a discrete 2 ohm resistor, and the two sections were connected in series. Every wire has some resistance, inductance and capacitance, it is also very lightly coupled with other wires around it.
What happens when a wire is stretched to double its length?
Given: a wire of resistance 1Ω is stretched to double its length. Now after the act of stretching the volume remains constant. Was this answer helpful? The resistance of wire of length 250m is 1ohm .If the resistivity of the material of wire is 1.6×10 −8 ohm meter, find the area of cross-section of the wire.
How many ohms does it take to increase the resistance 9 fold?
Assuming resistivity does not change due to mechanical manipulation then the overall effect is to increase the resistance 9 fold. 3 times because the wire is 1/3 thinner and a further 3 times because the wire is 3 times longer. Thus 2 ohms becomes 18. None of the answers below is correct.
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