Follow

# The Princess Bride has been called this generation's The Wizard of Oz. What do you think made The Princess Bride the classic that it is today?

View Full Interview Answered

In Technology

# What happens to the resistivity of the material of wire when the diameter of a metal wire is doubled keeping the length same?

Nothing. Resistivity, expressed in ohm metres, is a constant for any particular conductor although it is affected by temperature.

Was this answer useful?
Yes
Somewhat
No

Answered

In Science

# 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 * LNow we have R = K * L / pi r^2Multiplying numerator and denominator by L we get R = K/V * L^2So resistance is found to be proportional to square of lengthHence as length gets increased by 2 times, its resistance value would increase by 4 times. (MORE)

Answered

# 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. (MORE)

In Treatment

# How Do People With HIV Know How or When To Change Their Medications?

It can be a complex decision to change one's HIV medications. This article explores some of the hows and whys of doing so.… (MORE)

In Remedies

# Herbal Medicines to Help Treat and Cure Diabetes

In Type 1 diabetes, your pancreas produces either negligible amounts of insulin or none at all due to your own immune system attacking the islet cells that make it. Type 2 dia…betes begins as insulin resistance. Though your pancreas can reach a point where it no longer can produce insulin, (MORE)

In Electrical

# Inline Amp Meter Installation

A vehicle's electrical system is a complex system with energy being converted to start the engine, keep the battery charged, and send power to various different parts of the e…ngine. Wires serve as conductors in which this energy flows through. An amp meter, often called an ammeter, measures electrical current (MORE)

Answered

# 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 = resis…tivity 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. (MORE)

Answered

In Technology

# What happens to a wire as the resistance increases?

The resistance increases as the temperature increases. AnswerYour question should be, 'What causes the resistance of a wire to increase?' The answer is that its resistiv…ity increases which, in turn, causes its resistance to increase. (MORE)

Answered

In Technology

# 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 t…he 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 AnswerIf 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). (MORE)