COMEDK · Physics · 23. Alternating Current
In the circuit shown, the internal resistance of the cell is negligible. The steady state current in the \(2 \Omega 2\) resistor is

- A \(0.9 \mathrm{~A}\)
- B \(1.5 \mathrm{~A}\)
- C \(0.6 \mathrm{~A}\)
- D \(1.2 \mathrm{~A}\)
Answer & Solution
Correct Answer
(A) \(0.9 \mathrm{~A}\)
Step-by-step Solution
Detailed explanation
In the steady state analysis capacitor acts as an open circuit. Therefore, the equivalent circuit is given as Thus, current in the \(4 \Omega\) resistor is zero. \(2 \Omega\) and \(3 \Omega\) resistors are parallel to each other. Thus, the resistance in the upper branch is given…
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Physics
- For a series \(L-C-R\) circuit at resonance, which statement is not true?COMEDK 2020 Easy
- A capacitor of capacitance \(4 \mu \mathrm{~F}\) is charged to a potential of 24 V and then connected in parallel to an uncharged capacitor of capacitance \(6 \mu \mathrm{~F}\). The final potential difference across each capacitor will be:COMEDK 2025 Medium
- The displacement-time graph of a moving particle is shown below

The instantaneous velocity of the particle is negative at the pointCOMEDK 2024 Easy - If \(R\) and \(L\) denote resistance and inductance of a material, then the dimension of \(L R\) will be:COMEDK 2025 Medium
- 3 point charges each of \(-\mathrm{q}\) are placed on the circumference of a circle of diameter \(2 \mathrm{a}\) at \(\mathrm{A}, \mathrm{B}\) and \(\mathrm{C}\) respectively as shown in figure. The electric field at \(\mathrm{O}\) is
COMEDK 2024 Medium - Which of the following is an electromagnetic wave?
A. Sound waves
B. Alpha rays
C. Beta rays
D. Gamma raysCOMEDK 2025 Easy
More PYQs from COMEDK
- The current in a simple series circuit is \(5.0 \mathrm{~A}\).
When an additional resistance of \(2.0 \Omega\) is inserted, the current drops to \(4.0 \mathrm{~A}\). The original resistance of the circuit (in \(\Omega\) ) isCOMEDK 2017 Easy - A small segment of a polypeptide gave on complete hydrolysis 3 molecules of alanine, 2 molecules of glycine and 3 molecules of cysteine. What is the number of peptide linkages in the segment of the polypeptide?COMEDK 2026 Easy
- In the figure, pendulum bob on left side is pulled a side to a height \(h\) from its initial position. After it is released it collides with the right pendulum bob at rest, which is of same mass. After the collision, the two bobs stick together and rise to a height
COMEDK 2023 Medium - In the titration of mohr salt against \(\mathrm{KMnO}_{4}\), the indicator used isCOMEDK 2019 Medium
- The length of the tangent drawn from any point on the circle \(x^{2}+y^{2}-4 x+6 y-4=0\) to the circle \(x^{2}+y^{2}-4 x+6 y=0\) isCOMEDK 2018 Easy
- In the given circuit, assuming the battery is oriented with its positive terminal on the right, the diode \(D_1\) and \(D_2\) have the forward resistance \(25\,\Omega\) and infinite backward resistance. When they are connected to the source, the current passing through the \(175\,\Omega\) resistor is:
COMEDK 2023 Medium