Answer:
The outward current must be 5.0 A
Explanation:
-A junction is a point where at least three circuit paths meet.
-According to Kirchhoff's Junction Rule & the Law of Charge Conservation:
-The outward current must always equal the inward current because charge is conserved and current measures the rate at which charges are flowing.
Answer:
In physics we call it power
Answer:
Explanation:
From the given information:
We know that the thin spherical shell is on a uniform surface which implies that both the inside and outside the charge of the sphere are equal, Then
The volume charge distribution relates to the radial direction at r = R
∴
To find the constant k, we examine the total charge Q which is:
∴
Thus;
Hence, from equation (1), if k =
To verify the units:
↓ ↓ ↓
c/m³ c/m³ × 1/m
Thus, the units are verified.
The integrated charge Q
since
Answer:
Total power generation will be 291.465 MW
Explanation:
We have given that river is flowing at rate of V =
Average speed v = 3 m/sec
Height h = 58 m
We know that total mechanical energy is given by
E = KE +PE
Energy per unit mass
Total power generation from the river is given by
So
Answer:
Option C
A feather falls from one end of a tube to the other inside a vacuum
Explanation:
In conservative force field, which in this case is a vacuum, you expect that there will be no loss of energy to air-friction. Therefore, when a feather falls from one end of the tube to the other side which is a vacuum, we expect no energy loss. Conservative forces are the forces that are path-independent. This implies that in a closed loop, the total work done is zero. Considering the options given, only feather falls from one end of a tube to the other inside a vacuum meets the criteria