MHT CET · Physics · Electromagnetic Induction
What is the phase difference between the flux linked with a coil rotating in a uniform magnetic field and the induced e.m.f. produced in it?
- A \(\pi\)
- B \(-\frac{\pi}{6}\)
- C \(\frac{\pi}{3}\)
- D \(\frac{\pi}{2}\)
Answer & Solution
Correct Answer
(D) \(\frac{\pi}{2}\)
Step-by-step Solution
Detailed explanation
\(\Phi = BA\cos(\omega t)\) \(E = -\frac{d\Phi}{dt} = -BA(-\omega\sin(\omega t)) = BA\omega\sin(\omega t)\)
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
- The average force applied on the wall of a closed container depends as \(\mathrm{T}^{\mathrm{X}}\) where T is the temperature of an ideal gas. The value of \(x\) isMHT CET 2024 Easy
- Which one of the following symbols represents a photodiode?
(A)
(B)
(C)
(D)
MHT CET 2020 Easy - To obtain a magnified image at distance of distinct vision (DDV) using a simple microscope, the object should be placedMHT CET 2020 Easy
- In series LCR circuit, resistance is \(18 \Omega\) and impedance is \(33 \Omega\). An r.m.s. voltage of
\(220 \mathrm{~V}\) is applied across the circuit. The true power consumed in a.c. circuit isMHT CET 2020 Medium - When an electron is accelerated through a potential ' \(\mathrm{V}\) ', the de-Broglie wavelength associated with it is ' \(4 \lambda\) '. When the accelerating potential is increased to \(4 \mathrm{~V}\), its wavelength will beMHT CET 2023 Medium
- When a current in the conducting coil is changed from 5 A in one direction to 5 A in opposite direction in 0.5 second, an average induced e.m.f in the coil is 2 V . The self-inductance of the coil isMHT CET 2025 Easy
More PYQs from MHT CET
- Which of the following does not react with cold or hot water?MHT CET 2024 Medium
- Which one of the following is NOT true about vegetative propagation?MHT CET 2018 Easy
- A biconvex lens \(\left(\mathrm{R}_1=\mathrm{R}_2=30\right)\) has focal length equal to the focal length of concave mirror. The radius of curvature of concave mirror is
[Refractive index of material of lens \(=1.6]\)MHT CET 2021 Medium - Kinetic energy of a proton is equal to energy ' \(E\) ' of a photon. Let ' \(\lambda_1\) ' be the de-Broglie wavelength of proton and ' \(\lambda_2\) ' is the wavelength of photon. If \(\frac{\lambda_1}{\lambda_2} \propto \mathrm{E}^{\mathrm{n}}\), then the value of ' \(n\) ' isMHT CET 2021 Hard
- Converging or diverging ability of a lens or mirror is calledMHT CET 2023 Easy
- If \(x=e^{(y+e)^{(y+e)}(y+\ldots \ldots \infty)}\), then \(\frac{d y}{d x}=\)MHT CET 2020 Medium