Type of modulation used for continuous and sinusoidal wave is
Amplitude modulation, Frequency modulation and Phase modulation are used for the carrier wave which is a continuous wave whereas Pulse... View Article
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Is it possible to use a capacitor of suitable capacitance instead of a choke coil?
It is possible to use a capacitor of suitable capacitance instead of a choke coil.
What is the unit of Capacitive Reactance Xc?
The unit of Capacitive Reactance Xc is Ohm. Capacitive reactance is defined as the measure of capacitor’s opposition to alternating... View Article
What is the average power consumed/cycle in ideal capacitor.
The average power consumed/cycle in an ideal capacitor is 0. The average power consumed in an ideal capacitor is given... View Article
In capacitative circuit the resistance is due to
In capacitative circuit the resistance is due to charged capacitor.
In a set a bulb and a capacitor are connected what with happen if we increase the frequency
In a set a bulb and a capacitor are connected if we increase the frequency bulb will glow brighter as... View Article
As shown in the figure, P and Q are two coaxial conducting loops separated by some distance. When the switch S is closed, a clockwise current flows in P (as seen by E) and an induced current
When switch S is closed magnetic field lines passing through Q increases in the direction from right to left. So,... View Article
Which of the following statements is not true for polar molecules?
The oxygen and hydrogen molecules are non-polar molecules.
Capacitor _________ dc flowing through it.
Capacitor doesn’t allow dc to flow through it.
Motional emf is emf induced
across the ends of a wire moving in a magnetic field.
In a current carrying conductor varying electric field generates
In a current-carrying conductor, by varying the electric current, the magnetic field is generated. The direction of the magnetic field... View Article
The polarized dielectric is equivalent to
Two charged surfaces are created and these have equal and opposite charge densities.
The unit of self inductance of a coil is?
The self-inductance of a coil is defined as the ratio of self-induced emf to the rate of change of current... View Article
Explain different ways to induce the current in a coil.
The different ways to induce current in a coil are as follows: 1. If a coil is moved rapidly between... View Article
Which region (or regions) carries a net charge of the greatest magnitude?
Since all field lines are going out from (iii) so the net flux is largest in this case. In case... View Article
Five forces are separately applied to a flat object lying on a table of negligible friction as shown in figure. The force which will not cause the object to rotate about the centre of the object is
The line of action of F2 passes through the centre of rotation, and thus cannot produce a torque about the centre (r =... View Article
The figure shows a dish kept at an orientation with a marble placed on it. If the marble in figure is displaced slightly, it would rattle about for a while and come to rest in its original place. This is an example of :
If a dish is kept at an orientation with a marble placed on it and if the marble in figure is... View Article
Two vessels with equal base and unequal height have water filled to same height. The force at the base of the vessels is
Force at the bases of two vessels will be equal as force depends on height and area. Since it is... View Article
Two identical rectangular strips, one of copper and the other of steel, are riveted as shown to form a bi-metal strip. On heating, the bi-metal strip will
On heating, the copper strip will suffer greater elongation and hence the bimetal strip will bend with the steel strip... View Article
The graph represents the velocity time for the first 4 seconds of motion. Find the distance covered
The distance covered = area under the curve = (1/2) x 4 x 4 = 8 m
