CUET · PHYSICS · PYQ PAPER 2025
The equivalent resistance of the network shown in figure between the points a and b will be
- A 3 r
- B r/3
- C r
- D 3 r/2
Answer & Solution
Correct Answer
(C) r
Step-by-step Solution
Detailed explanation
The bridge is balanced: \( \frac{r}{r} = \frac{r}{r} \). The resistor across the mid-points is ineffective. Top branch: \( R_{top} = r + r = 2r \) Bottom branch: \( R_{bottom} = r + r = 2r \) Equivalent resistance:…
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
- There are four particles A, B, C and D with the same mass and equal kinetic energy K. If the kinetic energy of particle A becomes 4 K, B becomes 9 K, C becomes 64 K and D becomes 16 K times, respectively, the fractional change in the de Broglie wavelength of the particles arranged in increasing order isCUET 2025 Hard
- A parallel plate capacitor of capacitance 2 \( \mu F \) has energy \( 10 \times 10^{-5} \, J \). The potential difference and the charge on the capacitor are:CUET 2025 Easy
- In a potentiometer, a cell is balanced at 240 cm. On shunting the cell with 2 \(\Omega\) resistance, the balancing comes at 120 cm. What is the internal resistance of the cell ?CUET 2023 Medium
- A freshly prepared radioactive sample of half life 1 hour emits radiations that are 128 times as intense as the permissible safe limit. What is the minimum time after which the sample can be safely used?CUET 2023 Easy
- Factors, on which the capacitance of a parallel plate capacitor depends, are
(A) Charge on the plates
(B) Area of plates
(C) Permittivity of the medium between the plates
(D) Distance between the plates
Choose the correct answer from the options given below:CUET 2025 Easy - A current of 10 A is flowing in a wire of length 1.5 m. When placed in a uniform magnetic field of 2 T, it experiences a force 15 N. The angle between the magnetic field and the direction of flow of current isCUET 2025 Hard
More PYQs from CUET
- An urn contains 5 red and 5 black balls. A ball is drawn at random, its color is noted and is returned to the urn.
Moreover, 2 additional balls of the same color are put in the urn and then a ball is drawn at random.
The probability that the second drawn ball is red, is :CUET 2025 Medium - The area (in square units) bounded by the curve \(y=\cos x\) between \(x=0\) and \(x=2 \pi\) in first quadrant is equal to :CUET 2025 Medium
- The vector equation of the plane which is at a distance of 6 units from the origin and has \(2,-1,2\) as the direction ratios of normal to it, is :CUET 2023 Medium
- During transcription process in eukaryotes, 'capping' involves:CUET 2023 Hard
- Match List-I with List-II
Choose the correct answer from the options given below :List-I ( Matrix A ) List-II ( Determinant of adj A ) (A) \(\left[\begin{array}{cc}2 & 1 \\0 & -1\end{array}\right]\) (I) 6 (B) \(\left[\begin{array}{cc}0 & 1 \\4 & -1\end{array}\right]\) (II) 5 (C) \(\left[\begin{array}{cc}1 & 2 \\-3 & -1\end{array}\right]\) (III) \(-4\) (D) \(\left[\begin{array}{cc}4 & -2 \\3 & 0\end{array}\right]\) (IV) \(-2\) CUET 2025 Easy - Let us suppose that two independent random samples of sizes \(n_1\) and \(n_2\) have been drawn from the same normal population.
Then the degree of freedom of the statistic \(t\)-distribution isCUET 2025 Easy