Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / sam
telegraph wires are made up of metals like copper, aluminium
etc. they have a tendency of expansion in summers (due to
excessive heat) and contraction in winters (due to loss of
heat), so if they are tightly stretched, they might break in
winters
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
When thomas edison was promoting the wide use of direct current, this personal enemy of edisons was the chief proponent and expert in alternating current?
What is frequency of sound in air?
Who first detected radio waves?
Explain the difference between emission and absorption line spectra. : quantum physics
Explain what formula is most appropriate to compute the kinetic energy of a block of ice sliding down an inclined plane?
Why a capacitor is a voltage sensitive device?
Can i work 240 volt 1400 watts 1 ton ac with 24 volt battery..! How..?
While at berkeley, melvin calvin used this radioisotope to decipher many of the complex processes of photosynthesis:
What is ion pair energy?
When the sound intensity is above 120 decibel, what happen to human ears?
explain the proper definition of light?
Draw a graph between frequency of photon and velocity of photo electron?
Explain reflection of light?
How much does automotive oil weigh?
What is the force needed to accelerate a mass of one kilogram one meter per second per second?
