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MHT CET202415 May 2024Evening ShiftPhysicsCurrent ElectricityActual

A galvanometer may be converted into ammeter or a voltmeter. In which of the following cases the resistance of the device so obtained will be the largest?

Options

  1. AAmmeter of range 1 A
  2. BAmmeter of range 10 A
  3. CVoltmeter of range 1 V .
  4. DVoltmeter of range 10 V

Correct answer

D. Voltmeter of range 10 V

Step-by-step solution

A voltmeter always has high resistance as R is in series. To increase the range of voltmeter i.e., to increase V , its resistance must increase. High range high resistance. Voltmeter of range 10 V has the largest resistance.

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