As we know that magnetic field strength due to solenoid is given by
here we know that
= permeability of air medium
N = number of turns
L = length of solenoid
i = electric current
Now as we enter the iron rod into the solenoid the medium will get change that will increase the permeability
so with the iron rod we will have
so correct answer will be
<u>It increases the magnetic field’s strength. </u>
E=h * nu, where nu is frequency of the wave.
frequency = 1/wavelength = 1/571 *10 ^-9 = 1.7 * 10^7.
e= 6.63 *10^-34 *1.7 *10^7
e=11.271 * 10^-27 Joules
Answer:
Fish are divided into three main groups, which include Cartilaginous fish, Bony fish, and Lobe-finned fish.
Answer:
The acceleration is 4, 8 m/s2
Explanation:
We calculate the acceleration, with the data of mass and force, through the formula:
F= m x a ---> a= F/m
a= 435 N/90 kg 1N= 1 kg x m/s2
a= 435 kg x m/s2/ 90 kg
a= 4,8 m/s2