Current Electricity Problems - Numerical 03
03. - What is the number of free electrons in a piece of silver of cross-section 1.0 x 10 - 4 m 2 and length 1m? Atomic weight of silver = 108, density of silver = 105 x 10 2 kg m - 3 . Assume that there is one free electron per ato..
Current Electricity Problems - Numerical 01
01. - In the case of hydrogen atom, an electron moves in an orbit of radius 5x10 - 1 1 m with a speed of 2.2 x 10 6 ms - 1 . Calculate the equivalent current. Given: charge on an electron = 1.6 x 10 - 1 9 ..
Difference between Passage of Electricity through a Metal and an Electrolyte
Passage of electricity through a metal (or graphite) Passage of electricity through an electrolyte By flow of electrons which have negligible mass By flow of ions, which are very dense particles compared to the elements Metal (or graphite) does not..
Electric Charges and Field Problems - Numerical 05
05. - In a hydrogen atom, the distance between electron and proton is 5.3 x 10 - 1 1 m. Calculate the electrical force of attraction between the..
Atomic Number and Atomic Mass
The nuclei of atoms is made up of protons and neutrons. These two components of the nucleus are referred to as nucleons. The electrons occupy the space outside the nucleus. Since an atom is electrically neutral, the number of protons in the nucleus is exactly equal to ..
Atomic Number and Atomic Mass
The nuclei of atoms is made up of protons and neutrons. These two components of the nucleus are referred to as nucleons. The electrons occupy the space outside the nucleus. Since an atom is electrically neutral, the number of protons in the nucleus is exactly equ..
Atomic Number, Mass Number or Nucleon Number
The nuclei of atoms are made up of protons and neutrons. These two components of the nucleus are referred to as nucleons. The electrons occupy the space outside the nucleus. Since an atom is electrically neutral, the number of protons in the nucleus is exactly equal t..
1. Inside a conductor, electro static field is zero.
A conductor has free electrons, and they experience a force only when the electric field is not zero. In a static situation, the free electrons gets itself distributed in such a way that, the electric field everywhere inside the conductor is zer..
Measurement of Voltages, Currents and Resistances
Voltmeter and Ammeter - These devices measure the voltage and current respectively in a circuit. The basic component of both is the moving coil galvanometer which produces a deflection proportional to the electric current through ..
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