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# What would happen if the length of wire increase what happens to the resistance?

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View Full Interview# What happen to the resistance of metallic wire if it is heatedExplain?

Its resistance increases. This is because of vibrations of the core of atoms and so they have got good influence over the movement of electrons. So conductivity gets reduced a…nd so resistance increases. This is what we call positive temperature coefficient

# When a wire is made smaller the resistance increases. Which happens to the electric current?

the current decreases

# What will happen to the brightness of a bulb if the length of a wire increases?

If you mean the length of the wire that supplies current to the bulb, the bulb will dim due to increased resistance in the wire, if you make it longer.

# What will happen to the resistance of a wire if it is stretched to increase its length by 2 times?

Actually resistance is directly proportional to the length provided area remains constant. But as we stretch the wire only its volume would remain constant. So its area is to …be decreased as length increases. V = pi r^2 * L Now we have R = K * L / pi r^2 Multiplying numerator and denominator by L we get R = K/V * L^2 So resistance is found to be proportional to square of length Hence as length gets increased by 2 times, its resistance value would increase by 4 times.

# What happens to the resistance of a conductor wire as the temperature of the wire increases?

It increases

# What happens to voltage when resistance is increased?

When we increase the resistance the voltage is also increases.........

# What will happen if the resistance of the conductor increased?

Assuming that there is a potential difference across the conductor, then the value of the current will fall (I = E/R).

# Suppose a wire of resistance R could be stretched uniformly until it was twice its original length. What would happen to its resistance?

Current tends to travel on the surface of the wire. As you decrease the cross-sectional area of a wire the resistance increases. That is why larger wires are rated for higher …currents.

# What happens to resistance when resistors are wired in parallel?

a resistor can be used to reduce current flow

# A piece of wire is stretched such that its length increases and its radius decreases the resistance of the wire will tend to?

A piece of wire stretched such that its length increases and its radius decreases will tend to have its resistance increase. The formula for this is: R = ρL/A where ρ = re…sistivity of the material composing the wire, L = length of the wire, and A = area of the conducting cross section of the wire. It can easily be seen that as area decreases resistance gets higher. In the case proposed the wire length is not reduced as it is stretched to reduce the area, this increases the resistivity as well.

# What happens to resistivity of a wire when it is double folded?

Nothing. Resistivity is a physical characteristic of a material. It's not affected by its shape, etc.

# As a wire increases in length what happens to the resistance in the circuit?

the resistance can never increase or decrease....... (you can't open the resistor and take out the something and make the resistance increase or decrease) Since resist…ance is directly proportional to the length of a conductor, increasing the length of a wire will increase its resistance. For example, if you double its length, you will double its resistance.

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# When a wire is made smaller the resistance increases what happens to the electics current?

as with any electrical system if resistence is increases then current and voltage will be reduced.

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# What happens when the resistance of an electrical circuit is increased?

If the voltage is unchanged, then the current will reduce.

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# What happens to voltage when wire length increase?

When the length of the wire increases voltage drop across the wire will occur. There are two factors that can result in voltage drop. One diameter of the wire, two length of …the wire. Voltage drop increases with increase in length of wire, whereas voltage drop decreases with increase in diameter (cross section area) of the wire. G.RAO Answer If you are asking what happens to the voltage across a length of wire when its length increases, the answer is nothing happens! The voltage applied to the wire is determined by the supply, not by the load (i.e. the wire).

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# Why does the resistance of wire increase as you increase the length?

Wire has a specific resistance per distance. So if you increase the distance, the resistance of that particular wire will be greater.

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# What happens to resistivity of a wire if it is double-folded?

Nothing. Resistivity is independent of a conductors size or shape.