In an a.c. circuit, the current...

In an a.c. circuit, the current

is always in phase with the e.m.f

always leads the e.m.f

always lags the e.m.f.

any of the above, depending upon the elements (L,C or R) of the circuit.

Text Solution

Verified by Experts

Topper's Solved these Questions

TEXTUAL QUESTIONS
MODERN PUBLICATION|Exercise EXERCISE|507 Videos
STRUCTURE OF NUCLEUS
MODERN PUBLICATION|Exercise EXERCISE|47 Videos
TEXUAL QUESTIONS
MODERN PUBLICATION|Exercise EXERCISE|195 Videos

Similar Questions

Explore conceptually related problems

In an LCR-series a.c. circuit, the current

In an a.c circuit, the a.c. metres measures?

Direction. In the following questions, a statement of assertion is followed by a statement of reason. While answering a question, you are required to choose the correct are out of the given four responses and mark it as (A). If both assertion and reason are true and reason is the correct explanation of the assertion, (B) if both assertion and reason are true but reason is not correct explanation of the assertion. (C) if assertion is true, but reason if false, (D) if both assertion and reason are false Assertion : Faraday's law are consequence of the conservation of energy Reason : In a purely resistive a.c. circuit, the current lags behind the e.m.f. in phase

In an a.c. circuit, the votlage applied is E = E_0 sin omegat . The resultig current in the circuit is I = I_0 sin (omegat - pi//2) . The power consumption in the circuit will be

In an a.c. circuit, an alternating voltage E = 200 sqrt2 sin 100t (in volt) is connected to a capacitor of capacitance 1muF . The r.m.s. value of the current in the circuit is

A reactive element, in an a.c. circuit, causes the current flowing to lead in phase by pi/2 w.r.t applied voltage. Identify the element in this case.

A reactive element, in an a.c. circuit, causes the current flowing to lag in phase by pi/2 w.r.t applied voltage. Identify the element in this case.

In an a.c. circuit, with phase voltage V and current I, the power dissipated is

MODERN PUBLICATION-TEXTUAL QUESTIONS-EXERCISE

In an a.c. circuit, the current
Text Solution
|
For current entering at A, the electric field E(r at a distance r form...
Text Solution
|
A material 'B' has twice the specific resistance of 'A'. A circular wi...
Text Solution
|
The length of a given cylindrical wire is increased by 100%. Due to th...
Text Solution
|
If a wire is stretched to make it 0.1% longer, its resistance of will
Text Solution
|
An electric current is passed through a circuit containing two wires o...
Text Solution
|
By increasing the temperature, the specific resistance of a conductor ...
Text Solution
|
A strip of copper another of germanium are cooled from room temperatur...
Text Solution
|
The difference in the variation o resistance with temperature in a met...
Text Solution
|
The thermistors are usually made of
Text Solution
|
The resistance of a bulb filmanet is 100Omega at a temperature of 100^...
Text Solution
|
The resistance of a wire is 5 ohm at 50^@C and 6 ohm at 100^@C. The re...
Text Solution
|
The resistance of hot tungsten filament is about 10 times the cold res...
Text Solution
|
An electric bulb is rated 220 V and 100 W. when it is operated on 110 ...
Text Solution
|
An 220 volt-1000 watt bulb is connected across a 110 volt mains supply...
Text Solution
|
A heater coil is cut into two equal parts and only one part is now use...
Text Solution
|
If in the circuit, power dissipation is 150 W, then R is
Text Solution
|
A wire when connected to 220 V mains supply has power dissipation P1. ...
Text Solution
|
The resistance of the series combination of two resistances is S. WHen...
Text Solution
|
A 3 V battery with negligible internal resistance is connected in a ci...
Text Solution
|
What will be the value of current through 2Omega resistance for the ci...
Text Solution
|