Answer:
Where's the question or the picture???
Assuming is a closed circuit when the switch is closed, it would be the strength of the battery in the circuit, assuming a and b were points at each end of the circuit. Depending on the specifics of the circuit, this could change, you could add more batteries together or it could reduce based on resistance if there's a viable current path still open while the switch is open. You may have missed attaching a picture or link.
Complete Question
The light energy that falls on a square meter of ground over the course of a typical sunny day is about 20 MJ . The average rate of electric energy consumption in one house is 1.0 kW .
If light energy to electric energy conversion using solar cells is 12 % efficient, how many square miles of land must be covered with solar cells to supply the electrical energy for 350000 houses? Assume there is no cloud cover.
Answer:
The area is 
Explanation:
From the question we are told that
The efficiency is 
12%
The number of houses is 
The light energy per day is 
The average rating of electric energy for a house is 
Generally the electric energy which the solar cells covering 
produces in a day is
Energy for required by one house for one day is
Energy needed for 350000 house is
The area covered is mathematically represented as
Science is first the comprehensive study of the natural and physical environment. (that's like Biology, anatomy, and mathematics )
Science is second the body of knowledge based on facts and principles gained by scientific method (like experiments and observations)
Answer:
Some of the differences between a gravitational force and a magnetic force are:
- Gravitational force is a type of attractive force that exists between two objects with mass, while magnetic force is a type of force that exists between two objects with a magnetic field.
- Gravitational force is always attractive, meaning that it pulls two objects towards each other, while magnetic force can be attractive or repulsive, depending on the direction of the magnetic fields.
- Gravitational force is proportional to the mass of the objects, while magnetic force is proportional to the magnitude of the magnetic field.
- Gravitational force is weaker than magnetic force, as it decreases with distance more quickly.
- Gravitational force is affected by the distance between the objects, while magnetic force is affected by the angle between the magnetic fields.
Overall, gravitational force and magnetic force are two different types of forces that have different properties and behave differently in different situations.
