Electricity Flashcards
1
Q
State what is meant by the emf of a battery.
A
Work done in moving 1 C of charge whole way round circuit.
2
Q
Explain, why the reading on the voltmeter does not change
when the cell in the circuit is replaced with another cell of the same emf but a
significant internal resistance.
A
resistors not changing
voltmeter having infinite resistance ideally so
not affecting circuit
