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secondary 4 | Biology
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secondary 4 chevron_right Biology chevron_right Singapore

physics qn. Please help. Thanks!

Date Posted: 6 months ago
Views: 35
Lim Zhong Liang
Lim Zhong Liang
6 months ago
Hi, initally when the resistance is 1000ohms, the voltage divider rule is 1000/(1000+500) x 30V which is 20V. when it falls below 100ohms, the voltage across is 100/(500+100) x 30V which is 5V. Therefore it falls from 20V to 5V.
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6 months ago
Thanks!

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Lim Zhong Liang
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