Related Questions

The skin effect of a conductor will reduce as the
A Resistivity of conductor material increases
B Permeability of conductor material increases
C Diameter increases
D Frequency increases
When a conductor carries more current on the surface as compared to core, it is due to
A Permeability variation
B Corona
C Skin effect
D Unsymmetrical fault
When a current carrying conductor is brought into magnetic field, the force that moves the conductor depends upon
A The value of current
B The weight of the conductor
C The direction of the conductor
D None of the above
A conductor of length L has current I passing through it, when it is placed parallel to a magnetic field. The force experienced by the conductor will be
A Zero
B BLI
C B2LI
D BLI2
A simply supported beam A carries a point load at its mid span. Another identical beam B carries the same load but uniformly distributed over the entire span. The ratio of the maximum deflections of the beams A and B, will be
A $$\frac{2}{3}$$
B $$\frac{3}{2}$$
C $$\frac{5}{8}$$
D $$\frac{8}{5}$$
The lower and upper cut off frequencies are also called ___________ frequencies
A Sideband
B Resonant
C Half-resonant
D Half-power
A band-stop filter passes frequencies between its lower and upper critical frequencies and rejects all others.
A True
B False
Frequencies above ___________ kHz are called radio frequencies
A 2
B 10
C 50
D 200
Our skin, when exposed to excess sunlight, becomes dark. This is because of our skin pigments called
A flavoxanthin
B melanin
C carotene
D Xanthophyll
Which of the following is a good conductor of heat but bad conductor of electricity ?
A Asbestos
B Celluloid
C Straw Board
D Mica

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