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Sagot :
The resistance of the resistor is 120 Ω
What is resistance?
"Resistance is a measure of the opposition to current flow in an electrical circuit."
Data given
Power of lamp (P)= 6 W,
Emf of cell (V)= 12 Volt
Current drawn from cell (i) = 0.6 A
Combination is parallel, it means the potential on resistor and lamp is same, so current taken by lamp, by formula,
P= V .i
Substitute the values,
6 = 12× i
i = [tex]\frac{6}{12}[/tex]
i = 0.5 A ( current taken by lamp) so current taken by resistor,
[tex]i_{r} = 0.6-0.5 =0.1 A[/tex]
Now the resistance of resistor, by formula,
[tex]R = \frac{V}{i_{r} }[/tex]
[tex]R = \frac{12}{0.1} \\R = 120[/tex] Ω
Hence the resistance of the resistor is 120 Ω.
To learn more about resistance here
https://brainly.com/question/17562635
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