What is the resistance of a voltmeter designed for 150V, if the current in it should not exceed 0.01A?

univerkov | August 1, 2021 | education

U = 150 V.
I = 0.01 A.
R -?
According to Ohm’s law, the current I is directly proportional to the voltage U and inversely proportional to the resistance of the conductor R.
I = U / R.
R = U / I.
R = 150 V / 0.01 A = 15000 Ohm
Answer: the resistance of the voltmeter must be at least R = 15000 ohms.

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