# GCSE Physics Revision: Electricity and Magnetism Alternative to Practical

(a) The figure below shows the scale of an ammeter. Draw the position of the pointer when the ammeter reading is 0.35 A.

(b) The ammeter was used in the circuit shown below to investigate the current in a lamp.

(i) Name the component labelled Y.

(ii) The table shows the current I in the lamp for different values of the p.d. V across the lamp.

1. Calculate the values of the resistance R of the lamp, using the equation
$R=\frac{V}{I}$