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secondary 4 | Biology
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physics qn. Please help. Thanks!
Date Posted: 6 years ago
Views: 458
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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Let me know if you still nt sure
Date Posted:
6 years ago
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