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Recent questions tagged electromagnetic induction and alternating current
+3
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1
answer
Magnetic flux through a coil of resistance 10 Ω is changed by Δ ϕ in 0.1 *. The resulting current in the coil varies with time as shown in the figure.
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Apr 5, 2019
in
Class 12
by
kratos
class-12
neet
aiims
electromagnetic induction and alternating current
+2
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1
answer
Let C be the capacitance of a capacitor discharging through a resistor R. Suppose t1 is the time taken
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Apr 2, 2019
in
Class 12
by
kratos
electromagnetic induction
neet
electrostatics
jee
aiims
jee mains
alternating current
electromagnetic induction and alternating current
+2
votes
1
answer
In an LCR series a.c. circuit, the voltage across each of the components, L,C and R is 50V. The voltage across the LC combination will be
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Apr 1, 2019
in
JEE
by
kratos
electromagnetic induction
jee
jee mains
alternating current
class-12
electromagnetic induction and alternating current
+2
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1
answer
Two coaxial solenoids are made by winding thin insulated wire over a pipe of cross-sectional area A = 10cm^2 and length = 20cm.
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Mar 31, 2019
in
JEE
by
kratos
electromagnetic induction
irodov
electrodynamics
jee
jee mains
alternating current
class-12
electromagnetic induction and alternating current
+2
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1
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A small signal voltage V(t)= V0 sin ωt is applied across an ideal capacitor C
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Mar 29, 2019
in
Class 12
by
kratos
neet
jee
jee mains
alternating current
electromagnetic induction and alternating current
+1
vote
1
answer
In a series LCR circuit R = 200 W and the voltage and the frequency of the main supply is 220 V and
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Mar 28, 2019
in
Class 12
by
kratos
electromagnetic induction
neet
jee main 2021
jee
aiims
jee main
jee mains
alternating current
current electricity
electromagnetic induction and alternating current
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vote
1
answer
ln a coil of resistance 10 Ω the induced current developed by changing magnetic flux through it,
asked
Mar 21, 2019
in
Class 12
by
kratos
neet
jee
electromagnetic induction and alternating current
+1
vote
1
answer
Figure shows a circuit that contains three identical resistors with resistance 9
asked
Mar 21, 2019
in
Class 12
by
kratos
neet
circuits
jee main 2021
jee
jee mains 2019
jee main
jee mains
electromagnetic induction and alternating current
+2
votes
1
answer
An electron moves on a straight line path XY as shown. The abcd is a coil adjacent to the path of electron.
asked
Mar 18, 2019
in
Class 12
by
kratos
neet
class-12
electromagnetic induction and alternating current
+3
votes
1
answer
The power factor of an ac circuit having resistance (R) and inductance (L) connected in series and an angular velocity w is,
asked
Mar 14, 2019
in
JEE
by
kratos
electromagnetic induction
jee
jee mains
alternating current
class-12
electromagnetic induction and alternating current
+1
vote
1
answer
A coil of inductance 300 mH and resistance 2Ω is connected to a source of voltage 2V.
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Mar 11, 2019
in
JEE
by
kratos
electromagnetic induction
irodov
electrodynamics
jee
jee mains
alternating current
class-12
electromagnetic induction and alternating current
+2
votes
1
answer
The instantaneous voltages at three terminals marked X, Y and Z are given by,
asked
Mar 6, 2019
in
Class 12
by
kratos
neet
jee
resistance
class-6
electricity and circuits
class-10
icse
jee mains
electric circuits
alternating current
ohms law
electromagnetic induction and alternating current
+2
votes
1
answer
The instantaneous values of alternating current and voltages in a circuit are given as
asked
Mar 6, 2019
in
Class 12
by
kratos
neet
jee
electromagnetic induction and alternating current
+2
votes
1
answer
In an LCR series a.c. circuit, the voltage across each of the components, L,C and R is 50V. The voltage across the LC combination will be
asked
Mar 5, 2019
in
JEE
by
kratos
electromagnetic induction
jee
jee mains
alternating current
class-12
electromagnetic induction and alternating current
+1
vote
1
answer
A point P is moving with uniform velocity v along a line AB. O is a point on the perpendicular to AB at A and at a distance l from it.
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Mar 5, 2019
in
JEE
by
kratos
electromagnetic induction
electromagnetic induction and alternating current
cbse
jee
jee mains
magnetism
alternating current
class-12
bitsat
+3
votes
1
answer
An alternating voltage given by V = 140 sin 314 t is connected across a pure resistor of 50 Ω. Find: (i) the frequency of the source.
asked
Mar 4, 2019
in
Class 12
by
kratos
electromagnetic induction
neet
jee
jee mains 2019
jee mains
alternating current
class-12
electromagnetic induction and alternating current
+2
votes
1
answer
In a series LCR circuit R = 200Ω and the voltage and the frequency of the main supply is 220V.
asked
Mar 1, 2019
in
Class 12
by
kratos
neet
jee
electromagnetic induction and alternating current
+3
votes
1
answer
Figure shows a circuit that contains three identical resistors with resistance ,R = 9.0 Ω) each.
asked
Feb 28, 2019
in
Class 12
by
kratos
neet
jee main 2021
jee
jee main
electromagnetic induction and alternating current
+2
votes
1
answer
In a circuit L, C and R are connected in series with an alternating voltage source of frequency f.
asked
Feb 28, 2019
in
Class 12
by
kratos
electromagnetic induction
neet
jee
jee mains
alternating current
class-12
electromagnetic induction and alternating current
+2
votes
1
answer
After charging a capacitor C to a potential V, it is connected across an ideal inductor L.
asked
Feb 16, 2019
in
Class 12
by
kratos
electromagnetic induction
neet
alternating current
class-12
electromagnetic induction and alternating current
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