Answer:
D. The resistance increases.
Explanation:
Resistance of a wire is R = ρL/A, where ρ is the resistivity of the wire, L is the length, and A is the cross sectional area.
As L increases, R increases.
Answer:
1.776 x 10^-19 m
Explanation:
Energy, E = 7 TeV
Let λ be the wavelength.
Energy = h c / λ
Where, h is the Planks,s constant and c be the velocity of light
h = 6.63 x 10-^-34 Js
c = 3 x 10^8 m/s
Convert TeV into J
1 TeV = 1.6 x 10^-7 J
So, E = 7 x 1.6 x 10^-7 = 11.2 x 10^-7 J
11.2 x 10^-7 = (6.63 x 10^-34 x 3 x 10^8) / λ
λ = 1.776 x 10^-19 m
I think it is C , idk why, but I just learn about this and I think it is.... sorry I didn't really help.....
Answer : The average value of current is 
.
Explanation :
It is given that,
Net charge, q = 5 C
Time, t = 0.05 s
The electric current is defined as the rate of change of electric charge.
or
The average current is .
Hence, this is the required solution.
Answer:
Explanation:
It's equal to change of momentum in contact
