A light bulb working on a 18 V battery draws a current of 3 A. What will be the resistance of the bulb?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 6 Ω
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Voltage (V)= 18 V
Current (I)= 3 A -
Resistance, R = Voltage/Current
R= V/I
R=18/3
R= 6
Therefore, if a light bulb working on a 18 V battery draws a current of 3 A, the resistance of the light bulb will be 6.