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For the following questions answer them individually
The energy stored in the magnetic field in a solenoid of length 30cm and diameter 3 cm wound with 1000 turns of wire & carrying a current of 10A is
A network is said to be linear, if and only if
The response is proportional to the excitation function.
The principle of superposition applies.
The principle of homogeneity applies.
The principles of superposition and homogeneity apply.
Kirchoff's law fails in the case of
Distributed parameter networks
In a four branch parallel circuit, 50mA current flows in each branch. If one of the branches opens, the current in other branches
Increase, but not double.
The wave length of a wave in a waveguide is
is greater than in free space
depends only on the waveguide dimensions and the free-space wavelength
is inversely proportional to the phase velocity
is directly proportional to the group velocity
Characteristic impedance of a quarter wave transformer connected in between a load of 100 ohm and a transmission line of characteristic impedance 225 ohms is
A transverse electromagnetic wave with circular polarization is received by a dipole antenna due to polarization mismatch. The power transfer efficiency from the waveto the antenna is reduced to about
The unit of displacement density of a magnetic circuit is
Coulomb / metre
Coulomb / sq. metre
Newton - cm
Amp / metre
The derivative of an ideal step function is
an impulse function
An impulse function consists of
entire frequency range with same relative phase
infinite bandwidth with linear phase variation
large DC with weak harmonics
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