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Physics

A cell of potential difference 12V is connected to a bulb. The resistance of filament of bulb when it glows, is 24Ω. Find the current drawn from the cell.

Current Electricity

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Answer

Given,

V = 12 V

R = 24 ?

I = ?

From Ohm's Law,

V = IR

Substituting the values in the formula, we get,

12=I×24⇒I=1224⇒I=0.5A12 = I \times 24 \\[0.5em] \Rightarrow I = \dfrac{12}{24} \\[0.5em] \Rightarrow I = 0.5 A

Hence, the current drawn from the cell = 0.5 A

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