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Q. What are secondary cells? Give an example?
i) They are rechargeable.
ii) The chemical reactions which take place in secondary cells are reversible.
iii) The active materials which are used up when the cell delivers current can be reproduced by passing current through the cell in opposite direction. Instance lead acid accumulator and alkali accumulator.
Write down differential equation of a forced oscillator related to an external periodic force. Set up the solution of it.
Ray Diagrams for Concave Mirrors Object Located At the Center of Curvature: Ray diagrams are meaningful tools for denoting the location of an image as generates through a con
Q What is temperature of inversion? Maintain the temperature of the cold junction constant the temperature of the hot junction is gradually increased. The thermo emf increase
why we use compensater??
A dual-wavelength spectrometer uses 780 nm and 830 nm. The molar extinction coefficients for oxy-hemoglobin (HbO 2 ) and deoxy-hemoglobin (Hb) at these two wavelengths are: e_HbO 2
P-Type Substance: When a small quantity of boron or Indium (group III A elements ) is added to silicon or Germanium, holes are formed in it and it becomes good conductor of pos
How is plastic clad silica fibre used in optical fibres? Plastic clad silica fibre: Plastic clad silica fibre (PCS) is other type of optical cable. This has an attenuation l
Frequency The number of vibration done per second by an oscillation body is known its frequency. It is denoted by V. The S.I unit is Hz. V=1/T
Kirchoff"s Current Law states that in any electrical network, the algebraic sum of the currents meeting at a point (or junction) is zero, which means that the total current leavi
What are simple ways to quantify the dryness of a semi-permeable hard surface?
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