Question

If resistance of series resistance is increased then reading of voltmeter will-

• A. Increase
• B. Decrease
• C. remain same
• D. none of these

Answer 1

The correct option is B Decrease

Series resistance is connected to a voltmeter in order to protect the voltmeter from damage due to a large current. This restricts current flow and only small current goes through the voltmeter. If the series resistance is increased, lesser current will pass through the voltmeter and hence the reading of the voltmeter will decrease.