Question:
The diagrams show three circuits with identical batteries, identical inductors, and identical resistors.
Rank them according to the current through the battery just after the switch is closed from least to greatest.
The diagrams show three circuits with identical batteries, identical inductors, and identical resistors.
Rank them according to the current through the battery just after the switch is closed from least to greatest.
Show Hint
Inductors oppose changes in current, so the placement of the inductor relative to the resistor (series or parallel) affects the initial current when the switch is closed.
Updated On: Apr 1, 2025
- 3, 2, 1
- 1, 3, 2
- 1, 2, 3
- 3, 1, 2
Hide Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
In circuits with inductors, the current through the battery just after the switch is closed depends on the inductor's opposition to the change in current (due to its inductance).
- In circuit 1, the inductor is in series with the resistor, and the current is opposed by both the resistor and inductor.
- In circuit 3, the inductor is in parallel with the resistor, and the current through the battery will be larger compared to circuit 1 because the current bypasses the inductor through the parallel path.
- In circuit 2, the current through the inductor is opposed by the inductor's inductance, but the resistor provides a direct path for current flow.
Thus, the ranking of current through the battery from least to greatest is 1, 3, 2.
- In circuit 1, the inductor is in series with the resistor, and the current is opposed by both the resistor and inductor.
- In circuit 3, the inductor is in parallel with the resistor, and the current through the battery will be larger compared to circuit 1 because the current bypasses the inductor through the parallel path.
- In circuit 2, the current through the inductor is opposed by the inductor's inductance, but the resistor provides a direct path for current flow.
Thus, the ranking of current through the battery from least to greatest is 1, 3, 2.
Was this answer helpful?
0
0
Top Questions on Electromagnetism
- The ratio of the magnetic field at the center of a circular coil to the magnetic field at a distance \( x \) from the center of the circular coil is:
- JEE Main - 2025
- Physics
- Electromagnetism
- An electron is made to enters symmetrically between two parallel and equally but oppositely charged metal plates, each of 10 cm length. The electron emerges out of the field region with a horizontal component of velocity \(10^6\) m/s. If the magnitude of the electric field between the plates is 9.1 V/cm, then the vertical component of velocity of electron is (mass of electron = \(9.1 \times 10^{-31}\) kg and charge of electron = \(1.6 \times 10^{-19}\) C):
- JEE Main - 2025
- Physics
- Electromagnetism
- Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Choke coil is simply a coil having a large inductance but a small resistance. Choke coils are used with fluorescent mercury-tube fittings. If household electric power is directly connected to a mercury tube, the tube will be damaged.
Reason (R): By using the choke coil, the voltage across the tube is reduced by a factor \( \frac{R}{\sqrt{R^2 + \omega^2 L^2}} \), where \( \omega \) is the frequency of the supply across resistor \( R \) and inductor \( L \). If the choke coil were not used, the voltage across the resistor would be the same as the applied voltage.
In light of the above statements, choose the most appropriate answer from the options given below:- JEE Main - 2025
- Physics
- Electromagnetism
- A charged particle moving with a velocity \(\vec{v} = v_1\hat{i} + v_2\hat{j} + v_3\hat{k}\) in a magnetic field \(\vec{B}\) experiences a force \(\vec{F} = F_1\hat{i} + F_2\hat{j}\). Here \(v_1, v_2, F_1, F_2\) are all constants. Then \(\vec{B}\) can be:
- WBJEE - 2024
- Physics
- Electromagnetism
- A heavy box of mass 50 kg is moving on a horizontal surface. If the coefficient of kinetic friction between the box and the horizontal surface is 0.3, then the force of kinetic friction is:
- VITEEE - 2024
- Physics
- Electromagnetism
View More Questions
Questions Asked in IPU CET exam
Which of the following is an octal number equal to decimal number \((896)_{10}\)?
- IPU CET - 2023
- Binary Operations
The additional 8% human genome sequenced account for ........ million new letters added to the existing sequenced DNA.
- IPU CET - 2023
- Genomics, proteomics, metabolomics
- Which of the following statements are true or false?
I. Endemic when it spreads across the globe is called a pandemic.
II. Epidemic is a disease that is permanently present in a region or population
Which of the following options is correct?- IPU CET - 2023
- Epidemiology
- Which one among the following is not a characteristic of 'big data'?
- IPU CET - 2023
- Big Data
- Blockchain Technology has the following hall mark features/s:
- IPU CET - 2023
- Blockchain Technology
View More Questions