State the condition in which terminal voltage across a secondary cell os equal to its e.m.f.
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Terminal voltage is nothing but the output voltage of a circuit
It is given as :
Terminal Voltage = Voltage present in the circuit - drops in the circuit. (at resistor etc)
V= E - IR
So when the resistance is zero, then the terminal voltage equals e.m.f
Across a secondary cell,
Terminal voltage equal to its e.m.f. when no current is drawn from it which means when it is an Open circuit.
It is given as :
Terminal Voltage = Voltage present in the circuit - drops in the circuit. (at resistor etc)
V= E - IR
So when the resistance is zero, then the terminal voltage equals e.m.f
Across a secondary cell,
Terminal voltage equal to its e.m.f. when no current is drawn from it which means when it is an Open circuit.
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