IB Physics HL D.2.16 Electric potential and field graphs Question Bank

Practise IB Physics HL D.2.16 Electric potential and field graphs with questions interpreting electric-field graphs, potential changes and physical consequences.

Exam points

identify the relevant physical quantity, model or diagram
apply the correct equation and units to the evidence
justify the result using conservation laws, fields or energy relationships

[Maximum number: 2]

This question is in two parts

Ionized hydrogen atoms are accelerated from rest in the vacuum between two vertical parallel conducting plates. The potential difference between the plates is V. As a result of the acceleration each ion gains an energy of $1.9 \times 10^{-18} \mathrm{~J}$ .

Calculate the value of V.

$\quad V=\frac{1.9 \times 10^{-18}}{1.6 \times 10^{-19}}$ ;
$=12 \mathrm{~V}$ ;

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D.2.16 (HL)—Work in electric fields question 1