CUET · PHYSICS · PYQ PAPER 2023

In Ampere-circuital law, the missing term is:

A \( i = \epsilon_0 \frac{dt}{d\Phi_E} \)
B \( i = \epsilon_0 \frac{d\Phi_E}{dt} \)
C \( i = \frac{1}{\epsilon_0} \frac{dt}{d\Phi_E} \)
D \( i = \frac{1}{\epsilon_0} \frac{d\Phi_E}{dt} \)

Verified Solution

Answer & Solution

Correct Answer

(B) \( i = \epsilon_0 \frac{d\Phi_E}{dt} \)

Step-by-step Solution

Detailed explanation

This missing term represents the displacement current \(\left(i_d\right)\), which James Clerk Maxwell added to the original law. It accounts for the magnetic field generated by a changing electric flux ( \(\Phi_E\) ), even in regions where no actual conduction current flows. B)…

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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(B) The measurable characteristics of a sample is called	(II) Alternative hypothesis
(C) A smaller group of a population selected to represent a population is caller	(III) Parameter
(D) The assumption made opposite to the null hypothesis is called	(IV) statistic

Choose the correct answer from the options given below:

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