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Recent questions tagged lcr series circuits
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(i) Figure shows the variation of resistance and reactance versus angular frequency.
asked
Apr 5, 2019
in
Class 12
by
kratos
alternating current
class-12
lcr series circuits
cbse
+2
votes
1
answer
The figure shows a series LCR circuit connected to a variable frequency of 200 V source with L = 50 mH, C = 80 μF and R = 40Ω find
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Apr 5, 2019
in
Class 12
by
kratos
alternating current
class-12
lcr series circuits
cbse
+3
votes
1
answer
In ac circuit with voltage V and current I, the power dissipated is.
asked
Mar 31, 2019
in
Class 12
by
kratos
electromagnetic induction
neet
lcr series circuits
cbse
alternating current
class-12
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1
answer
Derive an expression for the impedance of a series LCR circuit connected to an AC supply of variable frequency.
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Mar 27, 2019
in
Class 12
by
kratos
neet
lcr series circuits
cbse
aiims
alternating current
class-12
+3
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1
answer
Anand on entering his apartment, switched on the tube light, but it did not work. So he called an electrician.
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Mar 23, 2019
in
JEE
by
kratos
lcr series circuits
cbse
jee mains
alternating current
class-12
+3
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1
answer
The same alternating voltage v = V0 sin(ωt) is applied in both the LCR circuits shown below. The current through the resistance R at resonance is
asked
Mar 22, 2019
in
JEE
by
kratos
lcr series circuits
cbse
forced vibrations
jee
kcet
jee mains
alternating current
class-12
resonance
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1
answer
The AC voltage across a resistance can be measured using (a) a potentiomete
asked
Mar 22, 2019
in
Class 12
by
kratos
electromagnetic induction
neet
lcr series circuits
cbse
aiims
jee
jee mains
alternating current
class-12
+3
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1
answer
Prove that an ideal inductor does not dissipate power in an a.c. circuit.
asked
Mar 20, 2019
in
JEE
by
kratos
alternating current
class-12
jee mains
lcr series circuits
jee
circuits
cbse
+2
votes
1
answer
A source of a.c voltage V = V0 sin ωt is connected to a series combination of a resistor 'R' and a capacitor 'C'.
asked
Mar 19, 2019
in
Class 12
by
kratos
alternating current
class-12
lcr series circuits
cbse
+1
vote
1
answer
Derive the expression for the average Power dissipated in a series LCR circuit for an ac source of a voltage,
asked
Mar 17, 2019
in
Class 12
by
kratos
alternating current
class-12
lcr series circuits
cbse
+2
votes
1
answer
An inductor L of incluctance XL is connected in series with a bulb B and an a.c. source. How would brightness of the bulb change when
asked
Mar 6, 2019
in
Class 12
by
kratos
alternating current
class-12
lcr series circuits
cbse
+1
vote
1
answer
A LCR series ac circuit is tuned to resonance. The impedance of the circuit is
asked
Mar 5, 2019
in
Class 12
by
kratos
isc
lcr series circuits
cbse
icse
alternating current
class-12
+1
vote
1
answer
For an ideal conductor, connected across a sinusoidal ac voltage source. State which one of the following quantity is zero :
asked
Mar 1, 2019
in
Class 12
by
kratos
electromagnetic oscillations
lcr series circuits
cbse
alternating current
class-12
+3
votes
1
answer
A series L-C circuit has L = 0.405 H and C = 25 μF. The resistance R is zero. Find the natural frequency.
asked
Feb 13, 2019
in
JEE
by
kratos
lcr series circuits
cbse
jee
jee mains
alternating current
class-12
+3
votes
1
answer
Derive the expression for impedance, current and phase angle in a series LCR circuit using phasor diagram.
asked
Feb 8, 2019
in
Class 12
by
kratos
electromagnetic induction
lcr series circuits
cbse
alternating current
class-12
+1
vote
1
answer
Assertion : No power loss associated with pure capacitor in ac circuit.
asked
Feb 1, 2019
in
Class 12
by
kratos
electromagnetic induction
lcr series circuits
cbse
alternating current
class-12
+2
votes
1
answer
A series combination of resistor (R) and capacitor (C) is connected to an AC source of angular frequency w.
asked
Jan 30, 2019
in
JEE
by
kratos
electromagnetic induction
lcr series circuits
cbse
jee
jee mains
alternating current
class-12
+3
votes
1
answer
The figure shows a series LCR circuit connected to a variable frequency 230 V source.
asked
Jan 28, 2019
in
Class 12
by
kratos
alternating current
class-12
lcr series circuits
cbse
+2
votes
1
answer
A circuit containing a 80 mH inductor and a 60 μF capacitor in series is connected to a 230 V, 50 Hz supply.
asked
Jan 24, 2019
in
JEE
by
kratos
electromagnetic induction
lcr series circuits
cbse
jee
jee mains
alternating current
class-12
+3
votes
1
answer
The circuit shown below is working as a 8 V dc regulated voltage source. When 12 V is used as input, the power dissipated (in mW)
asked
Jan 20, 2019
in
JEE
by
kratos
lcr series circuits
cbse
jee main 2020
alternating current
class-12
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