CUET · PHYSICS · PYQ PAPER 2025
A current carrying solenoid of cross-sectional area \( 2 \, cm^2 \) and 2000 turns has a magnetic moment of \( 0.80 \, Am^2 \). The current flowing through the solenoid is
- A \(0.8A\)
- B \(2A\)
- C \(4A\)
- D \(0.2A\)
Answer & Solution
Correct Answer
(B) \(2A\)
Step-by-step Solution
Detailed explanation
\( I = \frac{\mu}{N A} \) \( I = \frac{0.80}{2000 \times 2 \times 10^{-4}} \) \( I = 2 \, A \)
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
- A metal foil of neglible thickness is introduced between two parallel plates of a capacitor at the centre. The new capacitance of the capacitor would be :CUET 2023 Easy
- In a series LCR circuit an ac voltage source is connected. When inductor is removed from the circuit, the phase difference between the voltage and the current in the circuit is \( \frac{\pi}{3} \). If capacitor is removed from the circuit instead of inductor, the phase difference is again \( \frac{\pi}{3} \). What is the power factor of the circuit?CUET 2023 Easy
- A pendulum of length 'l' having a bob of mass 'm' carrying charge 'q' is suspended from a stationary rigid support in a region of uniform electric field 'E' as shown in the figure. If the system is in equilibrium, the nature and magnitude of 'q' will be :
CUET 2025 Hard - The point charges \( 5 \times 10^{-11} \, \text{C} \) and \( -5 \times 10^{-11} \, \text{C} \) are placed along z-axis at z = 3 cm and z = -3 cm respectively. What will be the electric field intensity at a point (0, 4)CUET 2023 Easy
- An alternating voltage \( V = 140 \sin 100\pi t \) is connected across a pure resistor of resistance \( 40 \, \Omega \). What is the rms current through the resistor? (Take \( \sqrt{2} = 1.4 \))CUET 2023 Medium
- The materials and devices do not obey Ohm's law when
(A) The relation between V and I is not unique, i.e., there is more than one value of V for the same current I
(B) The relation between V and I depends on the sign of V
(C) V ceases to be proportional to I
(D) The relation between V and I is linear
Choose the correct answer from the options given below:CUET 2025 Hard
More PYQs from CUET
- \[\int e^x\left(1+x^2\right) d x=\]CUET 2023 Medium
- The mean of the number of heads in a simultaneous toss of three coins isCUET 2025 Medium
- If \(A\) and \(B\) are invertible matrices of the same order, then which of the following statements is not true?CUET 2023 Medium
- Study the following figure and answer the questions:
AUG codes for which amino acid?CUET 2023 Hard - In a cyclotron, if a deutron can gain an energy of 40 MeV, then a proton can gain an energy ofCUET 2025 Easy
- \( E_1 \) and \( E_2 \) represents potential and kinetic energies of the orbital electron respectively then:CUET 2023 Easy