Maths-
General
Easy
Question
The correct answer is:
Related Questions to study
maths-
maths-General
Maths-
Maths-General
physics-
The diameter of the condenser plate is 4cm. It is charged by an external current of 0.2A. The maximum magnetic field induced in the ga
The diameter of the condenser plate is 4cm. It is charged by an external current of 0.2A. The maximum magnetic field induced in the ga
physics-General
physics-
The capacity of a parallel plate condenser is 50 pF A magnetic field of 
T is produced at a distance of 10cm from the axis of the gap. The charging current is
The capacity of a parallel plate condenser is 50 pF A magnetic field of T is produced at a distance of 10cm from the axis of the gap. The charging current is
physics-General
physics-
An AC source having a frequency of 50 Hz and voltage supply of 300v is applied directly to the condenser of capacity 100mF The peak and rms values of displacement current are
An AC source having a frequency of 50 Hz and voltage supply of 300v is applied directly to the condenser of capacity 100mF The peak and rms values of displacement current are
physics-General
physics-
A condenser having circular plates having radius 2cm and separated by a distance of 3mm. It is charged with a current of 0.1 A The rate at which the potential difference between the plates change is
A condenser having circular plates having radius 2cm and separated by a distance of 3mm. It is charged with a current of 0.1 A The rate at which the potential difference between the plates change is
physics-General
physics-
The area of each plate of a parallel plated condenser is 144cm2 The electrical field in the gap between the plates changes at the rate of 
The displacement current is
The area of each plate of a parallel plated condenser is 144cm2 The electrical field in the gap between the plates changes at the rate of The displacement current is
physics-General
physics-
A laser beam can be focussed on an area equal to the square of its wavelength. A He-Ne laser radiates energy at the rate of 1mW and its wavelength is 600 nm The intensity of focussed beam will be
A laser beam can be focussed on an area equal to the square of its wavelength. A He-Ne laser radiates energy at the rate of 1mW and its wavelength is 600 nm The intensity of focussed beam will be
physics-General
physics-
An electromagnetic radiation has an energy 14.4 KeV. To which region of electromagnetic spectrum does it belong?
An electromagnetic radiation has an energy 14.4 KeV. To which region of electromagnetic spectrum does it belong?
physics-General
physics-
A point source of electromagnetic radiation has an average power output of 800W. The maximum value of electric field at a distance 3.5 m from the source will be 62.6 V/m, the energy density at a distance 3.5 m from the source will be - (in joule/m3)
A point source of electromagnetic radiation has an average power output of 800W. The maximum value of electric field at a distance 3.5 m from the source will be 62.6 V/m, the energy density at a distance 3.5 m from the source will be - (in joule/m3)
physics-General
physics-
In the above question the radiation force on the mirror will be
In the above question the radiation force on the mirror will be
physics-General
physics-
A plane electromagnetic wave of wave intensity 6W/m2 stikes a small mirror of area 40cm2 , held perpendicular to the approaching wave. The momentum transferred by the wave to the mirror each second will be
A plane electromagnetic wave of wave intensity 6W/m2 stikes a small mirror of area 40cm2 , held perpendicular to the approaching wave. The momentum transferred by the wave to the mirror each second will be
physics-General
physics-
The magnetic field in travelling EM wave has a peak value of 20nT. The peak value of electric field strength is.
The magnetic field in travelling EM wave has a peak value of 20nT. The peak value of electric field strength is.
physics-General
physics-
A wave is propagating in a medium of dielectric constant 2 and relative permeability 50. The wave impedance is
A wave is propagating in a medium of dielectric constant 2 and relative permeability 50. The wave impedance is
physics-General
physics-
The wave emitted by any atom or molecule must have some finite total length which is known as the coherence length. For sodium light, this length is 2.4cm. The number of oscillations in this length will be Given l = 5900
The wave emitted by any atom or molecule must have some finite total length which is known as the coherence length. For sodium light, this length is 2.4cm. The number of oscillations in this length will be Given l = 5900
physics-General
