Explanation:
potential difference = current × risstance
see part a point3 current is same
v= IR
v = 8×0.2
v= 1.6
see part a point 5
this potential difference is less than cell
Answer:
26 V
Explanation:
Given:
The three resistors 5.5 V. 8.2 V. and 12,3 V. are connected in series.
Now we have to find out the source voltage to which these resistors arc connected ?
Solution:
As we know in series the magnitude of current is uniform but the voltage divides between the resistors supplied from source voltage.So the magnitude of source voltage is, 5.5 V + 8.2 V + 12.3 V = 26 V
Hence, the value of the source voltage to which these resistors are connected is 26 V
Answer:
1. 
and 
2.
Explanation:
The energy of a photon is given by the so-called Planck-Einstein relation:
where E is the energy, f the frequency, 
the wavelength, c the speed of light and h the planck constant
So, we have:
And:
2. The work function is the amount of energy required to remove an electron from the material. Therefore the kinetic energy of the photoelectrons will be the energy of the electromagnetic radiation minus the work function:
Where K is the kinetic energy and W the work function, for copper W=4.7eV
Rewriting for :
This wavelength corresponds to the ultraviolet range
Prime meridian (lines of longitude) would be represent by 180 degree
Answer: Option C
<u>Explanation:</u>
The longitudes are vertical lines, and they intersect with latitudes to form grids. Sunlight takes about 4 minutes to pass from one grid to another. So, they are designated either West or East, besides their number in order to identify the location.
East longitudes cover 180 degrees and West ones cover west. So, totally there are 360 degree longitudes, having one standard one, called Prime Meridian. The Prime Meridian stays at the center of the earth, and hence termed as the center longitude and noble of all the verticals.
