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Questions and Answers
What is the expression for the efficiency of an electric circuit when maximum power is transferred to the load?
What is the expression for the efficiency of an electric circuit when maximum power is transferred to the load?
- Efficiency = 50%
- Efficiency = 100%
- Efficiency = $ rac{r}{R+r} $ (correct)
- Efficiency = $ rac{R}{R+r} $
What happens to the efficiency of the electric circuit when the load resistance increases?
What happens to the efficiency of the electric circuit when the load resistance increases?
- Efficiency becomes negative
- Efficiency remains unchanged
- Efficiency decreases (correct)
- Efficiency increases
How does the efficiency of an electric circuit change with an increase in the total resistance of the circuit?
How does the efficiency of an electric circuit change with an increase in the total resistance of the circuit?
- Efficiency increases (correct)
- Efficiency becomes negative
- Efficiency remains unchanged
- Efficiency decreases
In the context of an electric circuit, what does a higher efficiency indicate?
In the context of an electric circuit, what does a higher efficiency indicate?
Which theorem states that any linear circuit containing several sources and resistances can be replaced by a single voltage source and a single series resistance?
Which theorem states that any linear circuit containing several sources and resistances can be replaced by a single voltage source and a single series resistance?
What is the rule used to relate current flow at a junction in an electrical circuit?
What is the rule used to relate current flow at a junction in an electrical circuit?
What is the formula to calculate the Thevenin voltage of a circuit?
What is the formula to calculate the Thevenin voltage of a circuit?
What does the Maximum Power Transfer Theorem state for a DC source?
What does the Maximum Power Transfer Theorem state for a DC source?
In the context of electric circuits, which theorem allows any linear circuit with multiple sources and resistances to be replaced by a single voltage source and a single series resistance?
In the context of electric circuits, which theorem allows any linear circuit with multiple sources and resistances to be replaced by a single voltage source and a single series resistance?
What is the expression for the efficiency of an electric circuit when maximum power is transferred to the load?
What is the expression for the efficiency of an electric circuit when maximum power is transferred to the load?
What does Joule's law describe in the context of electric circuits?
What does Joule's law describe in the context of electric circuits?
What does Kirchhoff's current law state regarding the flow of current at a junction in an electrical circuit?
What does Kirchhoff's current law state regarding the flow of current at a junction in an electrical circuit?
