Scale of voltmeter

Which scale division (scale has 100 divisions) must the voltmeter hand point at a measuring range of 300V if we want to measure a voltage of 100V?

Correct answer:

n =  33

Step-by-step explanation:

U1=100 V U2=300 V  n=U2U1 100=300100 100=300100 100=30010000=3100=3331=33

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