I think the correct answer is the second option. A circuit describes a closed conducting loop through which an electrical current can flow. It is a path that an electrical current could flow. A circuit could be a closed one or an open circuit. A closed circuit would be a circuit where the current could flow continuously. An open circuit would be a type of circuit where the flow current would only go once and stopped at a particular point since the current has nowhere to go. For a circuit to work, an electric supply should be available to supply the electric current.
Answer:
Meandering
Explanation:
A meander is known as the continuous flow of regular curves which are sinuous, loops, turns, bends or winding in the channel of river
Production of a meander by a river or stream as it erodes the sediments comprising on an exterior, a concave bank and deposits it and other sediment on the downstream on an interior, convex bank which is like a point bar.
Rivers or streams with a one channel and sinuosities of 1.6 or more are defined as meandering rivers or streams.
Answer:
ФB = 4.89 W
Explanation:
In order to calculate the magnetic flux trough the triangular wire loop, you use the following formula:
(1)
B: magnitude of the magnetic field = 4.15T
A: area of the triangular loop
θ: angle between the normal to the surface and the direction of the magnetic field = 0°
Both direction of the magnetic field and the normal vector to the surface are parallel.
You calculate the area of the triangular loop:
(2)
b: base = 1.65 m
h: height = 
Next, you replace the values of A and B in the equation (1):
The magnetic flux trough the triangular wire loop is 4.89W
The potential energy:
E p = m · g · h
m = 25 kg, g = 9.81 m/s², h = 3 m
E p = 25 kg · 9.81 m/s² · 3 m = 735.75 J
