Home
Class 12
PHYSICS
Explain the term 'inductive reactance'.S...

Explain the term 'inductive reactance'.Show graphically the variation of inductive reactance with frequency of the applied alternating voltage.
An `a.c.` voltage `E=E_(0)sin omegat` is applied across a pure inductor `L`.Show mathematically that the current flowing through it lags behind the applied voltage by a phase angle of `pi//2`.

Text Solution

AI Generated Solution

### Step-by-Step Solution **Step 1: Define Inductive Reactance** Inductive reactance (denoted as \(X_L\)) is a measure of the opposition that an inductor presents to the flow of alternating current (AC). It is given by the formula: \[ X_L = 2\pi f L ...
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ALTERNATING CURRENT

    RESONANCE ENGLISH|Exercise A.L.P|10 Videos
  • ALTERNATING CURRENT

    RESONANCE ENGLISH|Exercise EXAMPLE|40 Videos
  • ALTERNATING CURRENT

    RESONANCE ENGLISH|Exercise Exercise -3 Part-2|3 Videos
  • ATOMIC PHYSICS

    RESONANCE ENGLISH|Exercise Advanved level problems|17 Videos

Similar Questions

Explore conceptually related problems

Explain the term 'capacitive reactance'.Show graphically the variation of capacitive reactance with frequency of the applied alternating voltage. An a.c. voltage E=E_(0) sin omegat is applied a across a pure capacitor C .Show mathematically that the current flowing through it leads the applied voltage by a phase angle of pi//2

An alternating voltage E=E_0 sin omega t , is applied across a coil of inductor L. The current flowing through the circuit at any instant is

A small signal voltage V(t)=V_(0)sin omegat is applied across an ideal capacitor C :

Prove that the current flowing through an ideal inductor connected across a.c. source, lags the voltage in phase by pi/2 .

(a) Draw graphs showing the variations of inductive reactnace and capacitive reactance with frequency of the applied ac source . (b) Draw the phasor diagram for a series RC circuit connected to an ac source. (c ) An alternating voltage of 220 V is applied across a device X , a current of 0.25 A flows , which lag behind the applied voltage in phase by (pi)/(2) radian . If the same voltage is applied across another device Y , the same current flows but now it is in phase with the applied voltage . (i) Name the devices X and Y. (ii) Calculate the current flowing in the circuit when the same voltage is applied across the series combination of X and Y.

In an LR -circuit, the inductive reactance is equal to the resistance R of the circuit. An e.m.f E=E_(0)cos (omegat) applied to the circuit. The power consumed in the circuit is

An alternating voltage given by E = 280 sin 50 pi t is connected across a pure resistor of 40 ohm. Find frequency of source and rms current through the bulb.

A circuit contains resistance R and an inductance L in series. An alternating voltage V=V_0sinomegat is applied across it. The currents in R and L respectively will be .

A circuit contains resistance R and an inductance L in series. An alternating voltage V=V_0sinomegat is applied across it. The currents in R and L respectively will be .

An alternating voltage is connected in series with a resistance R and inductance L if the potential drop across the resistance is 200V and across the inductance is 150V , then the applied voltage is