11.1 Define the term potential difference. (2)
11.2 In the electric circuit given below, the ammeter and connecting wires have
negligible resistance and the battery have no internal resistance.
11.2.1 Calculate the total resistance of the circuit. (3)
11.2.2 Calculate the amount of charge that flows through the 6 Ω in
40 seconds if the reading on the ammeter is 0,9 A. (5)
11.2.3 How does potential difference across the 6 Ω resistor and potential
Difference across the 12 Ω resistor compare?
Write down only HIGHER ACROSS 6 Ω, LOWER ACROSS 6 Ω or
THE SAME AS (1)
A low resistance copper wire is now connected between points P
and Q.
11.2.4 Will the reading on the ammeter INCREASE, BECOME ZERO or
DECREASE?
Give a reason for your answer. (2)
[13]
TOTAL: 150