Embibe Experts Solutions for Chapter: Electromagnetic Induction and Alternating Current, Exercise 1: TS EAMCET - 10 August 2021 Shift 1

Find the zero induced emf position for a conducting circular loop of radius $r.$ The circular loop is rotated about its diameter at a constant angular velocity ( in a magnetic field $B$ perpendicular to the axis of rotation.

A square loop of side, $a$ and resistance, $R$ is placed with its face in the $x-y$ plane. A uniform magnetic field of magnitude $B_0{e}^{\frac{-t}{\tau }}$, where $t$ is time & $\tau$ is a constant, pointing in $\sqrt{3}\hat{x}+\hat{z}$, direction is applied. The magnitude of emf in the loop at time, $\tau$ is

Current in a circuit falls from $8.0 \mathrm{A}$ to $0.0 \mathrm{A}$ in $0.2$ Seconds. If an average emf of $300 \mathrm{V}$ is induced, estimate the self - inductance of the circuit?

An alternating emf source of $100 \mathrm{V}$ at $50 \mathrm{Hz}$ is connected to a circuit of resistance $\left(10\mathrm{\pi }\right) \mathrm{\Omega }$ and inductance of $0.173 \mathrm{H}$. What is the phase difference between current and emf

In the circuit shown below, if $V_s=V_m\sin \omega t$ and the diode is ideal, the average value of voltage across $R_L$ is (Assume source resistance is zero)

A pure inductor of, $30.0 \mathrm{mH}$ is connected to a source of, $250 \mathrm{V}$. Find the inductive reactance (in $\mathrm{\Omega }$) and R.M.S. current (in $\mathrm{A}$) in the circuit if the frequency of the source is $80 \mathrm{Hz}$

In a series $LCR$, circuit with inductance $L=100 \mathrm{mH}$ and angular frequency, $\omega =2000 \mathrm{rad} {\mathrm{s}}^{-1}$ the current amplitude is maximum if the capacitance is

A current $I=I_0\sin \left(\omega t-\frac{\pi }{2}\right)$ flows in an $\mathrm{AC}$ circuit, if potential $E=E_0\sin \omega t$ has been applied. The power consumption in the circuit will be