Samee As Above Flashcards
(11 cards)
What is the remaining energy of a battery material referred to as?
Thermal energy
The remaining energy appears as thermal energy in the battery material.
What does an ideal battery maintain even if there is a current through it?
Potential difference equal to its emf
The potential difference between the terminals of an ideal battery remains constant.
What is the symbol used to denote an ideal battery?
Symbol shown in figure 32.10a
This symbol represents an ideal battery in circuit diagrams.
In an ideal battery, what is the relationship between the potential difference and the emf?
They are equal
The potential difference remains equal to the emf regardless of current.
What happens in a nonideal battery when a current passes through it?
Develops thermal energy
A nonideal battery generates thermal energy as current flows.
How is a nonideal battery represented in circuit diagrams?
Symbol shown in figure 32.10b
This symbol indicates a nonideal battery with internal resistance.
What does the potential difference between the terminals of a nonideal battery compare to?
Smaller than the emf
In a nonideal battery, the potential difference is less than the electromotive force (emf).
What does the equation VA - Va = (VA - V) - (V - Vo) illustrate?
Potential difference calculation
This equation calculates the potential difference in a circuit involving a nonideal battery.
What is the formula for thermal energy developed in time t in a nonideal battery?
i × r × t
The thermal energy developed is proportional to the current, resistance, and time.
What accounts for the difference between E and V in a nonideal battery?
Internal resistance of the battery
The internal resistance is responsible for energy loss in the form of thermal energy.
True or False: An ideal battery has no internal resistance.
True
Ideal batteries are considered to have no internal resistance affecting performance.
