Arun has a series circuit with a 6V battery, two identical buzzers
and two identical lamps.
The voltage across one buzzer is 1 V.
a
b
Calculate the voltage across one lamp.
Arun adds another 6 V battery in series with the first battery.
All the
components continue to work properly.
i
ii
State the voltage across one of the buzzers when the
second battery is added.
State the effect on the current in the circuit of adding
the second battery.

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