A student investigates the current in different types of circuit.

1. (a)State the relationship between current, charge and time.[1]
2. (b)Figure 8 shows two resistors connected in series to a power supply. [Figure 8 shows two resistors, R1 (5.0 Ω) and R2 (10 Ω), connected in series with an ammeter and a 6.0 V power supply.] (i) Calculate the total resistance of the circuit.[2]
3. (b)(ii)Calculate the current in the circuit.[2]
4. (b)(iii)Calculate the potential difference across the 5.0 Ω resistor.[2]
5. (c)Figure 9 shows the two resistors connected in parallel to the power supply. [Figure 9 shows two resistors, R1 (5.0 Ω) and R2 (10 Ω), connected in parallel with an ammeter measuring total current and a 6.0 V power supply.] State two ways the current from the power supply will differ from the current in the series circuit in (b).[3]

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