You are standing 1.2 m from a heat lamp that draws an rms current of 12.5 A

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You are standing 1.2 m from a heat lamp that draws an rms current of 12.5 A when connected to 120 V rms.

(a) Assuming that the energy of the heat lamp is radiated uniformly in a hemispherical pattern, what is the intensity of the light on your face?

(b) If you stand in front of the heat lamp for 2.0 min, how much energy is incident on your face? Assume your face has a total area of 2.8 × 10⁻²m².

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College Physics With An Integrated Approach To Forces And Kinematics

ISBN: 978-1260547719

5th Edition

Authors: Alan Giambattista

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Question Posted: Jun 03, 2022 07:15 AM

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You are standing 1.2 m from a heat lamp that draws an rms current of 12.5 A

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a The expression which relates power current and voltage is Power emitted by the light is Here I is ...View the full answer

College Physics With An Integrated Approach To Forces And Kinematics

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