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प्रश्न
Write symbol and state function of following component in an electric circuit :
cell
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उत्तर
Cell symbol : 
; It acts as a source of direct current for the circuit.
संबंधित प्रश्न
n electrons flow through a cross section of a conductor in time t. If charge on an electron is e, then write an expression for the current in the conductor.
Explain the concept of electric potential difference in terms of work done in transferring the charge.
State whether the resistance of filament of a bulb will decrease, remain unchanged or increase when it glows.
Write SI unit of
Electric current,
Write SI unit of
Resistance.
State three factors on which the resistance of a wire depends. Explain, how does the resistance depend on the factors stated by you.
Explain the following:
Potential difference
