- Give the condition in which terminal voltage across a secondary cell is equal to its emf.
- Why do we prefer a potentiometer with a longer bridge wire?
- What will happen to the conductivity of an electrolyte when the temperature is increased?
- Which cell among primary or secondary , will produce a larger current and why?
- Write the dimensional formula of electrical conductivity.
- How does the drift velocity of electrons in a metallic conductor vary with the increase in temperature?
- What is the rate of production of heat when current I flows through a conductor of potential drop V ?
- Nichrome and copper wire of same length and area of cross section are connected in series, current is passed through them,why does the nichrome wire gets heated first?
- Write two special characteristics of the wire of an electric heater.
- How many Kilowatt hours are there in 1 Joule?
CURRENT ELECTRICITY/REVISION QUESTIONS
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