Question 7
Question 7 of 10

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Describe an experiment to determine resistance using a voltmeter and an ammeter and do the appropriate calculations

Recall and use in calculations, the fact that: (a) the current at every point in a series circuit is the same (b) the sum of the currents entering a junction in a parallel circuit is equal to the sum of the currents that leave the junction (c) the total p.d. across the components in a series circuit is equal to the sum of the individual p.d.s across each component (d) the p.d. across an arrangement of parallel resistances is the same as the p.d. across one branch in the arrangement of the parallel resistances

Describe the action of negative temperature coefficient (NTC) thermistors and light-dependent resistors and explain their use as input sensors