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The liquids which permits the current to pass by them and also dissociates into ions on passing current by them are named electrolytes e.g. resolution of salts, bases and acids in water, etc.
Those liquids which do not permit current to pass by them are known as insulators (e.g. vegetable oils, distilled water etc.)
Which of two, namely potentiometer and voltmeter is preferable to calculate the emf of a batter? Why? When is the series combination of cells advantageous and why?
Two compartments each of 1 m 3 capacity are connected by a valve and insulated from the surroundings and from each other. One compartment contains saturated steam at 683.6 kPa and
Explain the term 'dielectric constant' of a medium in terms of capacitance of a capacitor. Draw a graph showing variation of resistivity of carbon with temperature
Chemical changes during: Discharging: The current will flow from positive to negative plate in the external circuit. As current now enters by negative plate, the negative
Q. Name the types of photoelectric cells? The photo electric cells are of three kinds: A) Photo emissive cell B) Photo voltaic cell and C) Photo conductive cell.
Give the conditions needed for production and observation of interference pattern?
Right hand Rule: James clark Maxwell proposed a rule to search the direction of magnetic lines of force around a wire carrying current. This rule states. "If a current carr
what are characteristics of resistances
Instantaneous velocity and speed are explained at a certain instant and are shown by
compton effect and quantum nature of light
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