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Explain Constant current system
Constant current system: - In this process, the charging current is kept constant by varying the supply voltage to overcome the enhanced back emf of cells. If a charging booster is used, the current supplied by it can be kept back constant by adjusting its excitation. If charged on d.c. supply, the current is controlled by differ the rheostat connected in the circuit. The value of charging current should be so chosen that there would be no excessive gassing during last stages of charging and, also, the cell temperature does not exceed 450C. This method takes a comparatively longer time
Constant current system
For the circuits shown in Figure the resistors show the internal resistance of the batteries. Find, in each case: (i) The total e.m.f. across PQ (ii) The total equivalent in
please discuss problem related to clamper.
A large sculpture is lowered into place by a crane. The sculpture has a mass of 2225 kg. When the sculpture makes contact with the ground, the crane slowly releases the tension in
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Can you explain Poynting theorem?
limitation of electrostatic sheilding
A rigid object is a body with a exact and unchanged size and shape i.e. a body is said to be rigid if the distance among any two particles of the body remains invariant.
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