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Recent questions tagged electrodynamics
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In the circuit shown in figure, calculate the following : (i) Potential difference between points‘a’ and ‘b’ when switch ‘*’is open.
asked
Apr 7, 2019
in
JEE
by
kratos
irodov
electrodynamics
electric current
jee
jee mains
ohms law
+2
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1
answer
Two long current carrying thin wires, both with current I, are held by insulating threads of length L and are in equilibrium
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Apr 6, 2019
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JEE
by
kratos
irodov
electrodynamics
magnetic effects of electric current
jee
injso
jee mains
magnetism
electric field
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1
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Near the point A (Fig. 3.10) lying on the boundary between glass and vacuum the electric field strength in vacuum is equal to E0 = 10.0 V/m
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Apr 6, 2019
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JEE
by
kratos
irodov
electrodynamics
jee
jee mains
electric field
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1
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A uniform electric field of strength E = 100 V/m is generated inside a ball made of uniform isotropic dielectric with permittivity ε = 5.00.
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Apr 6, 2019
in
JEE
by
kratos
irodov
electrodynamics
jee
jee mains
electric field
+2
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1
answer
A homogeneous proton beam accelerated by a potential difference V = 600 kV has a round cross-section of radius r = 5.0 mm.
asked
Apr 6, 2019
in
JEE
by
kratos
magnetic fields
irodov
electrodynamics
electric current
jee
jee mains
+3
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1
answer
A conductor of arbitrary shape, carrying a charge q, is surrounded with uniform dielectric of permittivity ε
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Apr 6, 2019
in
JEE
by
kratos
irodov
electrodynamics
jee
jee mains
electric field
+2
votes
1
answer
In the circuit shown the capacitor of capacitance C is initially uncharged. Now the capacitor is
asked
Apr 6, 2019
in
JEE
by
kratos
irodov
electric capacitance
electrodynamics
circuits
capacitance
jee
jee mains
electromagnetism
+3
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1
answer
A parallel-plate capacitor with area of each plate equal to * and the separation between them to d is put
asked
Apr 6, 2019
in
JEE
by
kratos
irodov
electrodynamics
jee
magnetic field
jee mains
+3
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0
answers
In a circular parallel plate capacitor radius of each plate is 5 cm and they are separated by a distance of 2 mm.
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Apr 6, 2019
in
JEE
by
kratos
irodov
electrodynamics
capacitance
electrostatics
electric current
jee
electrostatic potential
jee mains
class-12
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1
answer
N = 2.5.10^3 wire turns are uniformly wound on a wooden toroidal core of very small cross-section.
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Apr 5, 2019
in
JEE
by
kratos
irodov
electrodynamics
jee
magnetic field
jee mains
+1
vote
1
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An electric current i enters and leaves a uniform circular wire of radius a through diametrically opposite points.
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Apr 5, 2019
in
JEE
by
kratos
irodov
electrodynamics
jee
magnetic field
jee mains
electromagnetism
class-12
+1
vote
1
answer
The potential difference, VC, across a 3 Farad parallel-plate capacitor whose plates have radius R = 2 cm varies with time and
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Apr 5, 2019
in
Class 12
by
kratos
irodov
neet
electrodynamics
electric capacitance
cbse
electromagnetic waves
jee main 2021
electric current
jee
aiims
jee mains
jee main
class-12
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1
answer
Consider a long straight cylindrical wire with radius R = 0.1 m is carrying the non-uniform current density which points along the axis
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Apr 4, 2019
in
JEE
by
kratos
irodov
electrodynamics
cbse
jee main 2020
electromagnetic waves
jee
magnetic field
jee mains
class-12
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vote
1
answer
Two positive charges q1=16 and q2=4 are seperated by a diameter of 3m will produce force of
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Apr 4, 2019
in
JEE
by
kratos
irodov
electrodynamics
electrostatics
jee
jee mains
+3
votes
1
answer
Consider a glass cube slab of dielectric bound by the planes x = 0, x = a; y = 0, y = b; z = 0, z = c; with b > a > c.
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Apr 4, 2019
in
JEE
by
kratos
irodov
electrodynamics
class-11
jee
kvpy
jee mains
electric field
+2
votes
1
answer
Uniform electric and magnetic fields with strength E and induction B respectively are directed along the y axis
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Apr 4, 2019
in
JEE
by
kratos
magnetic fields
irodov
electrodynamics
jee
jee mains
+2
votes
1
answer
A metal sphere on a long string is placed between the plates of a capacitor, as shown in Fig..
asked
Apr 4, 2019
in
JEE
by
kratos
irodov
electrodynamics
jee
jee mains
electric field
+3
votes
1
answer
Magnetron is a device consisting of a filament of radius a and a coaxial cylindrical anode of radius b
asked
Apr 3, 2019
in
JEE
by
kratos
magnetic fields
irodov
electrodynamics
jee
jee mains
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votes
1
answer
A straight wire carrying a current I2 runs along the axis of a circular current I1 (Fig.). What is the force of interaction between the currents?
asked
Apr 2, 2019
in
JEE
by
kratos
electromagnetic induction
irodov
electrodynamics
jee
magnetic field
jee mains
+3
votes
1
answer
An electron moves with a velocity 1 × 10^3 m/* in a magnetic field of induction 0.3 T at an angle 30°.
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Apr 2, 2019
in
Class 12
by
kratos
magnetic fields
irodov
neet
electrodynamics
electromagnetic induction
electricity
jee
aiims
jee mains
electromagnetism
magnetism
class-12
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