Series and parallel circuitsIB MYP Physics: Mind map

Exam questions on Series and parallel circuits

1. A student builds a circuit for a model greenhouse. A 6.0 V cell is connected in series with two resistors, one of 4.0 Ω and one of 8.0 Ω. The cell has negligible internal resistance.
   Calculate the potential difference across the 8.0 Ω resistor.2 marks
2. An electrician connects two lamps in parallel across a 12 V supply. One lamp has a resistance of 6.0 Ω and the other has a resistance of 12 Ω. The supply has negligible internal resistance.
   Calculate the total current drawn from the supply.2 marks
3. A group of students investigates how the way lamps are connected affects their brightness. They use three identical lamps and a 4.5 V supply. They connect the lamps first in series and then in parallel, and use an ammeter and a voltmeter to take readings in each arrangement.
   Identify the independent variable, the dependent variable and one control variable.3 marks