MCQ Subject: Electric Circuits & Network Theory

In a series RC circuit with a 10V supply, if the resistor voltage is 4V, what is the capacitor voltage?

A 10V DC source is in series with a 20Ω resistor, and a 30Ω resistor is across the load terminals. What is the Thevenin resistance looking into the load?

In a series circuit with a 10 Ω resistor, a 20 Ω resistor, and a variable resistor set to 30 Ω, connected to a 120 V supply, what is the voltage drop across the 30 Ω resistor?

What is the primary purpose of Thevenin’s Theorem in electric circuits?

Which of the following best describes the primary condition for applying the Superposition Principle in electric circuits?

Which theorem allows replacement of a linear circuit with a voltage source in series with a resistor to simplify analysis?