IB Physics HL B.5.3 Resistance Question Bank

Practise IB Physics HL B.5.3 by analysing non-ohmic V–I curves, component operating points, resistivity and ideal-meter behaviour.

Exam points

Read dynamic resistance from V–I curves and compare filament lamps, diodes and resistors at an operating current.
Apply resistivity, circuit readings and ideal ammeter/voltmeter assumptions to component problems.

[Maximum number: 1]

This question is in two parts

The plates in (c) are replaced by a cell that has an emf of 12.0 V and internal resistance $5.00 \Omega$ . A resistor of resistance R is connected in series with the cell. The energy transferred by the cell to an electron as it moves through the resistor is $1.44 \times 10^{-18} \mathrm{~J}$ .

Define resistance of a resistor.

ratio potential difference/voltage (across resistor) to current (in resistor) / $\frac{V}{I}$
with symbols defined;

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B.5.3—Resistance question 1