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In a series RCL circuit at resonance the applied ac voltage is 220 V. The potential drop across the inductance is 110V, what is the potential drop across the capacitor?

At resonance, the potential drop across the capacitance is equal and opposite to that of inductance.... View Article

What happens to the power in a FM signal as the modulation index increases?

Power remains constant irrespective of the modulation index in case of F.M. signal.... View Article

γ (Gamma) rays are_________

Answer: γ (Gamma) rays are electromagnetic waves. Gamma rays or gamma radiation is a stream of the high-energy electromagnetic radiation... View Article

Which one of the following statements about the atomic nucleus is accurate? a)The nucleus is held together mostly by the electrical and gravitational forces b) Large nuclei are denser than light nuclei c) All nuclei have nearly the same density d) Smaller nuclei are denser than larger nuclei

Option (c) All nuclei have nearly the same density. Most nuclei are approximately spherical. The average radius of a nucleus with A nucleon is... View Article

We know that the Rutherford model of the atom is superior to the Thompson model because when alpha particles are scattered from atoms:

We know that the Rutherford model of the atom is superior to the Thompson model because when alpha particles are scattered from atoms, some alpha... View Article

In scattering, the impact parameter b is defined as the:

It is the minimum distance to which the alpha particle would have approached the nucleus, had there been no forces between them. The impact... View Article

Choose the correct answer from the following

If cells are joined in parallel, they have _______. same current same potential difference same resistance same power Answer: 2. same... View Article

The process of impressing any information by changing the original signal is called

The process of impressing information by changing the original signal is called 'modulation', and it is done in a variety of ways. In all cases... View Article

Power dissipation is maximum in

Power dissipation is maximum at option (c) Pure resistive circuit In an AC circuit, the power dissipated in the circuit is given as follows... View Article

Resonant circuits are used in tuning of

Resonant circuits are used in tuning of a radio and a TV set.... View Article

When the oscillations produced are of constant amplitude. The are called

When the oscillations produced are of constant amplitude. They are called undamped oscillations.... View Article

Choose the right option for Rutherford’s Experiment

Choose the correct option for the following: The alpha particles used in Rutherford's experiment are positively charged particles, in fact each... View Article

The alpha particle scattering experiment was carried out by:

The alpha particle scattering experiment was carried out by Rutherford.... View Article

Rutherford’s alpha particle scattering experiment established that:

Rutherford's alpha particle scattering experiment established that protons are not evenly distributed throughout an atom.... View Article

Rutherford’s experiments on scattering of alpha particles proved that:

Rutherford's experiments on scattering of alpha particles proved that atom is mostly empty.... View Article

According to Rutherford, the atom consists of the following two parts:

According to Rutherford, the atom consists of electrons and protons.... View Article

Power in an ac circuit is equal to

Power in an ac circuit is equal to Instantaneous voltage X Instantaneous current.... View Article

Angle of dispersion depends on

The angle of dispersion depends on a) Angle of the prism. b) The material of the prism. c) The wavelength of the light ray passing through it.... View Article

In a series LCR what will be phase difference between voltage drop across inductor and capacitor

In a series LCR what phase difference between voltage drop across inductor and capacitor is 180 degrees.... View Article

The only component that dissipates energy in ac circuit is:

The only component that dissipates energy in ac circuit is the resistor.... View Article

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