The rectangular coils in a 345-turn generator are 12 cm by 12 cm. part a
what is the maximum emf produced by this generator when it rotates with an angular speed of 505 rpm in a magnetic field of 0.45 t ? express your answer using two significant figures.

118.166 volt

Explanation:

We have given number of turns N =345

Sides of the rectangular coils is 12 cm =0.12 m

So area A =0.12×0.12=0.0144

Magnetic field B =0.45 T

Angular speed =505 rpm

Speed in rad/sec

The emf is given by

For maximum emf sinwt =1

So

an electric circuit

the answer is false. this is because for ice to melt, it requires latent heat of melting. latent heat means heat energy required to change phase without any increase in temperatures. therefore, the ice will take energy from the environment to melt hence atmospheric temperatures will reduce.