As charges move in a closed loop, they gain as much energy as they lose.
<h3>What is principle of
conservation of energy?</h3>
- According to the principle of conservation of energy, in a closed or isolated system, the total energy of the system is always conserved.
- The energy gained by the particles or charges in a closed system is equal to the energy lost by the charges.
Thus, we can conclude the following based on principles of conservation of energy;
- As charges move in a closed loop, they gain as much energy as they lose.
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Answer:
a. the amount of work done on a system is dependent of pathway
Explanation:
The first law of thermodynamics states that the change in internal energy of a system equals the net heat transfer into the system minus the net work done by the system.
ΔU = Q - W
Where;
Q, the net heat transfer into the system depends on the pathway
W, the net work done by the system also depends on the pathway
But, ΔU, the change in internal energy is independent of pathway
Therefore, the correct option is "A"
a. the amount of work done on a system is dependent of pathway
But cracked cracks nuts while scripts cut
The new force between the charges when the distance become 2d will be F'=4F
<h3>What is electrostatic force?</h3>
When two charged particles are separated by the distance d then the force of attraction or repultion acts on the charged particle depending upon the nature of the charge whether it is positive or negative.
The formula for the electrostatic force is given by
Now if the value of d becomes 2d then the formula will become:
Hence the new force between the charges when the distance become 2d will be F'=4F
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Answer:
Potential Energy is given as:
P.E = mgh
which means P.E is directly proportional to height 'h'.
Kinetic Energy is given as:
K.E = (1/2)mv²
which means K.E is directly proportional to velocity 'v²'.
Total Energy of Pendulum = K.E + P.E
1. The pendulum has the most potential energy at extreme position because the height is maximum at the extreme position.
2. The pendulum has the least kinetic energy at extreme position because the velocity is zero at extreme position.
3. The pendulum has most kinetic energy at the mean position because the velocity is maximum at this point.
4. The pendulum has the least potential energy at the mean position because the height is minimum.
A rule to remember: The point where K.E is maximum, P.E is zero at this point and vice versa.
