CUET · PHYSICS · PYQ PAPER 2023
Two long and parallel straight conducting wires carrying currents of 5 A and 10 A in same direction are separated by a distance of 2 cm . The force per unit length on one wire due to other is \(\left(\mu_0: 4 \pi \times 10^{-7} N A ^{-2}\right)\)
- A \(5 \times 10^{-4} N / m\); attractive force
- B \(5 \times 10^{-4} N / m\); repulsive force
- C \(2.5 \times 10^{-4} N / m\); attractive force
- D \(2.5 \times 10^{-4} N / m\); repulsive force
Answer & Solution
Correct Answer
(A) \(5 \times 10^{-4} N / m\); attractive force
Step-by-step Solution
Detailed explanation
\( \frac{F}{L} = \frac{\mu_0 I_1 I_2}{2\pi d} \) \( \frac{F}{L} = \frac{(4\pi \times 10^{-7} N A^{-2}) (5 A) (10 A)}{2\pi (0.02 m)} \) \( \frac{F}{L} = 5 \times 10^{-4} N/m \); attractive force
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
- Two waves of amplitudes 3 m and 2 m, respectively superimpose at a point in the same phase. The resultant amplitude would beCUET 2025 Hard
- Electromagnetic waves carryCUET 2023 Easy
- An electric field in \(x-y\) plane is given by the equation \(\vec{E}=E_0 \hat{i} N / C\). A positively charged particle is given a velocity of \(5 \hat{j} m / s\) at point \(x=3, y=0\) in \(x-y\) plane. The particle will experience force :CUET 2023 Medium
- The wavelength of light coming from a sodium source is 589 nm. Its wavelength in crown glass having refractive index 1.52 isCUET 2025 Medium
- Which of the following statements is not correct for electromagnetic induction?CUET 2025 Medium
- A beam of electrons move horizontally from South to North in the region of the magnetic field acting vertically downward. The force acting on the electron due to the magnetic field is :CUET 2023 Medium
More PYQs from CUET
- Based on CFT, in octahedral crystal field, d orbitals split into orbitals of \(t_{2g}\) and \(e_{g}\) sets. Which d orbitals forms the \(t_{2g}\) set?CUET 2025 Hard
- The IUPAC Name for the complex \(Hg [Co(SCN)_4]\)CUET 2023 Easy
- Choose the incorrect statements from the following:
(A) The energy density of an electric field in electromagnetic waves is \( (\epsilon_0 E^2/2) \).
(B) The total energy of electromagnetic waves falling on a surface is \( E = 6.0 \times 10^5 \text{ J} \) and the momentum delivered to the surface, if absorbed fully, is \( p = 2 \times 10^3 \text{ kg m/s} \).
(C) The speed of the electromagnetic waves is \( E_0 / B_0 \).
(D) The energy density of magnetic field in electromagnetic Waves is \( (B^2 / \mu) \).
Choose the correct answer from the options given below:CUET 2025 Medium - Cells present in the mature pollen grains are __________ .CUET 2024 Hard
- Read the Passage carefully and answer the Questions
Kinetic studies not only help us to determine the rate of a chemical reaction but also describe the conditions by which the reaction rates can be altered.
The factors such as concentration, temperature, pressure and catalyst affect the rate of a reaction.
The speed of a reaction or the rate of a reaction can be defined as the change in concentration of a reactant or product in unit time.
Rate \(=k[A]^x[B]^y\)
Here \(k\) is the rate constant
\(x+y\) gives the overall order of a reaction, whereas \(x\) and \(y\) represent the order with respect to the reactants \(A\) and \(B\), respectively.
The order of a reaction which does not exist isCUET 2025 Hard - Choose the correct statement from the following:CUET 2025 Hard