B. The writer didn't mention anything significant .
Answer:
Value of
Explanation:
We have given
In first case resistance is and current is 1.8 A
Let the potential difference is v
So ----eqn 1
In second case resistance is and current is 1.6 A and potential difference will be as it is a series connection
So ----eqn 2
From eqn 1 and eqn 2
Answer:
125.83672 seconds
Explanation:
P = Power of the horse = 1 hp = 746 W (as it is not given we have assumed the horse has the power of 1 hp)
m = Mass of professor = 103 kg
g = Acceleration due to gravity = 9.8 m/s²
h = Height of professor = 93 m
Work done would be equal to the potential energy
Power is given by
The time taken by the horse to pull the professor is 125.83672 seconds
Answer:
The correct answer is in the x-axis direction, where the distance travelled is 1.0 cm and the surface is 8 .
Explanation:
The electrical resistance is lower when the contact surface is larger and the length is shorter.
An electrical resistance is an opposition to the flow of electric current through a conductor. For a given conductor, the resistance is given by the following formula:
R = ρ *
Where:
R: Electrical resistance.
ρ: Resistivity of the material.
l: Length.
S: Surface of the conductor.
Thus, the direction in which the electrical resistance is lower is when the distance is minimum and the area is greater.
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