Magnetic flux in a circuit containing a coil | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) Given:Resistance $R = 2\,\Omega$Initial magnetic flux $\phi_1 = 2.0\,Wb$Final magnetic flux $\phi_2 = 10\,Wb$Time interval $\Delta t = 0.2\,s$The

Vedclass · Accepted Answer

$4$

Vedclass · Answer

(D) Given:Resistance $R = 2\,\Omega$Initial magnetic flux $\phi_1 = 2.0\,Wb$Final magnetic flux $\phi_2 = 10\,Wb$Time interval $\Delta t = 0.2\,s$The induced electromotive force $(EMF)$ is given by Faraday's Law: $\varepsilon = -\frac{\Delta \phi}{\Delta t}$.The induced current is $I = \frac{|\varepsilon|}{R} = \frac{\Delta \phi}{R \Delta t}$.The charge $q$ passed through the coil is $q = I \Delta t = \left(\frac{\Delta \phi}{R \Delta t}\right) \Delta t = \frac{\Delta \phi}{R}$.Substituting the values:$q = \frac{10 - 2}{2} = \frac{8}{2} = 4\,C$.

Magnetic flux in a circuit containing a coil of resistance $2\,\Omega$ changes from $2.0\,Wb$ to $10\,Wb$ in $0.2\,s$. The charge passed through the coil in this time is......$C$

Similar Questions

The direction of induced current is such that it opposes the very cause that has produced it. This is the law of

The north pole of a magnet is brought near a metallic ring. The direction of the induced current in the ring will be

The magnetic flux $\phi$ through a coil varies with time $t$ as shown in the diagram. Which graph best represents the variation of the induced electromotive force (e.m.f.) $E$ in the coil with time $t$?

The magnetic flux linked with a coil,in webers,is given by the equation $\phi = 3t^2 + 4t + 9$. The magnitude of the induced $e.m.f.$ at $t = 2 \ s$ will be $...... \ V$.

What will be the direction of current in the coil $A$ as the switch $S$ is closed?

Vedclass Test Series

Exam Paper Generator

Online Exam Module