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Hey guys!!❤️❤️Please answer this question ⤵️⤵️A small bulb has a resistance of 2 ohm when cold.It takes up a current of 0.4 a from a source of 4v and then starts flowing calculate i) the resistance of the bulb when it is glowing and ii) elaborate on the reason for the difference in resistance? |
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Answer» Answer: R = V/I R=4/0.4 R=10 ohms i THINK the difference is because of USING the bulb means at first it will be COLD after it will BECOME hot |
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