please answer all parts.
The circuit shown is used to produce a current-voltage graph for a 12 V, 24 W bulb. 20 V RQ 24 Ω Show on a copy of the diagram, the correct positions for a voltmeter and an ammeter. Calculate the resistance of the bulb when it is operating normally. ii. Calculate the value of R which would enable the voltage across the bulb to be varied between 0 and 12 V. (a) (b) i.
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