That's the symbol used for a battery. Actually, it's <em>one cell of a battery</em>, and if there's more than one cell used in the circuit, then the same symbol is repeated in the diagram.
The longer line ... on the left side in this picture ... represents the positive ( + ) side of the cell. The short, fat line on the right is the negative side.
A shovel would classify as choice (A) because the head of the shovel is the wedge while the body of the shovel is the lever
Answer:
Positive
Explanation:
An ideal fluid is on which is incompressible and non-viscous.
In an ideal fluid element when a fluid element moves from a region of high pressure to region of low pressure then the work done on the fluid element is positive because the force acts in the direction from high pressure towards low pressure and displaces the fluid element, so the work-done is positive.
Answer:
Since there is attraction force between two charges so the other charge must be - 3C
Explanation:
As we know that the force between two charges is given by formula
here we know that
also we know that
r = 8 cm
now we have
so we have
