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List of top Physics Questions on Faradays laws of induction asked in KEAM
The plane of a circular loop of area \(150\ \text{cm}^2\) is perpendicular to a uniform magnetic field of \(0.5\) T. If the loop is turned such that its plane is in the direction of the field in \(0.5\) s, then the induced emf produced is
KEAM - 2026
KEAM
Physics
Faradays laws of induction
If the current in a coil of inductance $10,mH$ is increased from $1,A$ to $5,A$ in $0.2,s$, then the emf produced in it is
KEAM - 2026
KEAM
Physics
Faradays laws of induction
If an emf of 2 V is induced in a coil in 6 s, then the change of flux (in Wb) in the coil during the time is
KEAM - 2026
KEAM
Physics
Faradays laws of induction
The law that is a symmetrical counterpart of Faraday’s law of electromagnetic induction is
KEAM - 2026
KEAM
Physics
Faradays laws of induction
A circular coil of radius 10cm with 200 turns is placed $\perp$r to uniform magnetic field of 1.4T. IF magnetic field reduced to zero in 0.2s, what is the average induced emf
KEAM - 2026
KEAM
Physics
Faradays laws of induction
The power required to push the arm of a rectangular conductor with a constant speed \(v\) in a motor is directly proportional to
KEAM - 2025
KEAM
Physics
Faradays laws of induction
The self-inductance of an air core solenoid is \( L \). If the number of turns in the solenoid is doubled, keeping all other factors constant, then its self-inductance will be
KEAM - 2025
KEAM
Physics
Faradays laws of induction
The mismatched pair regarding the induced emf is
KEAM - 2025
KEAM
Physics
Faradays laws of induction
An iron ring is held horizontally and a bar magnet is dropped gently through the ring with its length coinciding with the axis of the ring. The acceleration of the freely falling magnet (\(g\) = acceleration due to gravity) is
KEAM - 2025
KEAM
Physics
Faradays laws of induction
The relation between the charge flow \(\Delta Q\) through the circuit of resistance \(r\) and the change in the magnetic flux \(\Delta \phi_B\) is
KEAM - 2020
KEAM
Physics
Faradays laws of induction
A train is running at a speed of \(72\ \text{km h}^{-1}\) on the rails separated by a distance of \(150\) cm. If the vertical component of earth's magnetic field at the place is \(4.0\times10^{-5}\) T. The induced emf on the rails is
KEAM - 2020
KEAM
Physics
Faradays laws of induction
A magnetic field of $1$~T applied at an angle $\pi/3$ to the vertical direction is decreased to zero at a steady rate in one second. The magnitude of induced emf in a horizontally placed circular loop of radius $5$~cm is given by
KEAM - 2019
KEAM
Physics
Faradays laws of induction
Consider a circular wire loop of radius R spinning about a diametrical chord which is perpendicular to a uniform magnetic field $(\vec{B}=B_0 \hat{k})$
KEAM - 2017
KEAM
Physics
Faradays laws of induction
If a magnet is plunged into a coil, then the magnitude of induced emf does not depend upon
KEAM - 2016
KEAM
Physics
Faradays laws of induction
A conducting ring of radius 1 m kept in a uniform magnetic field B of 0.01 T, rotates uniformly with an angular velocity 100 rad s\(^{-1}\) with its axis of rotation perpendicular to B. The maximum induced emf in it is
KEAM - 2014
KEAM
Physics
Faradays laws of induction
A conducting ring of radius 1 m kept in a uniform magnetic field B of 0.01 T, rotates uniformly with an angular velocity 100 rad s\(^{-1}\) with its axis of rotation perpendicular to B. The maximum induced emf in it is
KEAM - 2014
KEAM
Physics
Faradays laws of induction
A conducting ring of radius 1 m kept in a uniform magnetic field B of 0.01 T, rotates uniformly with an angular velocity 100 rad s\(^{-1}\) with its axis of rotation perpendicular to B. The maximum induced emf in it is
KEAM - 2014
KEAM
Physics
Faradays laws of induction