Home
Class 12
PHYSICS
By mistake, a voltmeter is connected in ...

By mistake, a voltmeter is connected in series and an ammeter is connected in parallel, with a resistance in an electrical circuit. What will happen to the instruments?

Text Solution

Verified by Experts

Voltmeter resistance being very, when used in series with a resistance in an electrical circuit, the effective resistance of the circuit becomes very high. Due to it, the current in the circuit becomes very low. As voltmeter measures potential difference between the two points, it will show the reading but will not be damaged. The ammeter resistance is very low. When it is connected in parallel with a resistance, the weak current flowing through the circuit will pass through the ammeter. Due to it, the ammeter will not show appreciable deflection. Therefore, the ammeter also will not be damaged.
Promotional Banner

Topper's Solved these Questions

  • MAGNETIC EFFECT OF CURRENT AND MAGNETISM

    PRADEEP|Exercise Conceptual Problems (d)|2 Videos

  • MAGNETIC EFFECT OF CURRENT AND MAGNETISM

    PRADEEP|Exercise Very Short Answer Questions (a)|2 Videos

  • ELECTROSTATICS

    PRADEEP|Exercise ASSERTION-REASON TYPE QUESTIONS|2 Videos

  • OPTICS

    PRADEEP|Exercise Multiple choice questions|1 Videos

Similar Questions

Explore conceptually related problems

By mistake a voltmeter is connected in series an an ammeter is connected in parallel with a resistance in an electrical circuit. What will happen to the instrument?

When an ammeter is connected in parallel the resistance of the circuit is

Which of the two is connected in series: ammeter or voltmeter?

Why is ammeter connected in series and voltmeter in parallel in the circuit?

A voltmeter can be converted into ammeter by connecting

Which statement/statement is/are correct? 1. An ammeter is connected in series in a circuit and a voltmeter is connected in parallel. 2. An ammeter has a high resistance. 3. A voltmeter has a low resistance.

Assertion : Voltmeter is connected in parallel with the circuit Reason : Resistance of a voltmeter is very large.

If an ammeter is connected in parallel to a circuit, it is likely to be damaged due to excess