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A Bulb Marked 12 V, 24 W Operates on a 12 Volt Car Battery for 20 Minutes. Calculate: (I) the Current Flowing Through It, and (Ii) the Energy Liberated. - Physics

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प्रश्न

A bulb marked 12 V, 24 W operates on a 12 volt car battery for 20 minutes. Calculate:
(i) The current flowing through it, and
(ii) The energy liberated.

संख्यात्मक
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उत्तर

Given, Voltage = 12 V, power = 24 W, time = 20 mins. = 1200 s.

(i) Currrent, I = `"P"/"V" = 24/12` = 2 A

(ii) energy liberated, H = VIt = 12 x 2 x 1200 = 28,800 J

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पाठ 4: Current Electricity - Exercise 4.2 ii [पृष्ठ १८८]

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फ्रँक Physics - Part 2 [English] Class 10 ICSE
पाठ 4 Current Electricity
Exercise 4.2 ii | Q 10 | पृष्ठ १८८

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