Physics-
General
Easy
Question
A long straight wire of resistance R, radius ‘a’ and length ‘l’ carries a constant current ‘I’. The pointing vector for the wire will be
The correct answer is:
Related Questions to study
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Among the following outermost configurations of transition metals, which shows the highest oxidation state
Among the following outermost configurations of transition metals, which shows the highest oxidation state
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Which of the following ions has the least magnetic moment
Which of the following ions has the least magnetic moment
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In first transition series, the melting point of 
is low because
In first transition series, the melting point of is low because
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Which element gives maximum balanced oxide
Which element gives maximum balanced oxide
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Which of the following general configuration of outermost shell represents chromium element [Cr’s atomic number = 24]
Which of the following general configuration of outermost shell represents chromium element [Cr’s atomic number = 24]
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The element having general electronic configuration 
is
The element having general electronic configuration is
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In the periodic table first transition series is placed in
In the periodic table first transition series is placed in
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If the colours of salts of transition elements are due to the presence of unpaired electrons in the transition metal ions, which of the following ions will be colourless in aqueous solution (The at. no. of 
and 
are 22 and 26 respectively)
If the colours of salts of transition elements are due to the presence of unpaired electrons in the transition metal ions, which of the following ions will be colourless in aqueous solution (The at. no. of and are 22 and 26 respectively)
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Magnetic moment is expressed in
Magnetic moment is expressed in
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Which of the following will give green hydrated ion
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physics-
A parallel plate capacitor of plate separation 2 mm is connected in an electric circuit having source voltage 400V. If the plate area is 60cm2 , then the value of displacement current for 10-6sec will be
A parallel plate capacitor of plate separation 2 mm is connected in an electric circuit having source voltage 400V. If the plate area is 60cm2 , then the value of displacement current for 10-6sec will be
physics-General
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The amplitude of magnetic field at a region carried by an electromagnetic wave is 0.1mT The intensity of wave is
The amplitude of magnetic field at a region carried by an electromagnetic wave is 0.1mT The intensity of wave is
physics-General
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In an electromagnetic wave in vacuum The electrical and magnetic fields are 40pV/m and 
The Poynting vector
In an electromagnetic wave in vacuum The electrical and magnetic fields are 40pV/m and The Poynting vector
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Electromagnetic radiation with energy flux 
is incident on a totally absorbing surface normally for 1 hour. If the surface has an area of 0.05m2 , then the average force due to the radiation pressure, on it is;
Electromagnetic radiation with energy flux is incident on a totally absorbing surface normally for 1 hour. If the surface has an area of 0.05m2 , then the average force due to the radiation pressure, on it is;
physics-General
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Light with energy flux 
is incident on a mirror of size 2cm´2cm normally. The force experienced by it and momentum delivered in one minute are
Light with energy flux is incident on a mirror of size 2cm´2cm normally. The force experienced by it and momentum delivered in one minute are
physics-General
