Home
Class 12
PHYSICS
An ammeter and a voltmeter are connected...

An ammeter and a voltmeter are connected in series to a battery with an emf `xi = 6.0 V`. When a certain resistance is connected in parallel with the voltmeter, the readings of the latter decreases `eta = 2.0` times, whereas the readings of the ammeter increase the same number of times, Find the voltmeter readings after the connection of the resistance.

Text Solution

AI Generated Solution

To solve the problem step by step, we will analyze the situation involving the ammeter, voltmeter, and the battery. ### Step 1: Understand the Initial Setup We have an ammeter and a voltmeter connected in series with a battery that has an emf (electromotive force) of \( \xi = 6.0 \, V \). ### Step 2: Initial Readings Let \( I \) be the current flowing through the circuit and \( R_a \) be the resistance of the ammeter. The voltage across the voltmeter (V) can be expressed as: \[ ...
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    DC PANDEY ENGLISH|Exercise Exercise 23.1|6 Videos

  • CURRENT ELECTRICITY

    DC PANDEY ENGLISH|Exercise Exercise 23.2|1 Videos

  • CURRENT ELECTRICITY

    DC PANDEY ENGLISH|Exercise Example Type 6|1 Videos

  • COMMUNICATION SYSTEM

    DC PANDEY ENGLISH|Exercise Subjective|11 Videos

  • ELECTROMAGNETIC INDUCTION

    DC PANDEY ENGLISH|Exercise Medical entrances gallery|25 Videos

Similar Questions

Explore conceptually related problems

An ammeter and a voltmeter are joined in series to a cell. Their readings are A and V respectively. If a resistance is now joining parallel with the voltmeter. Then

An ammeter, voltmeter and a resistor are connected in series to a cell and the readings are noted as I and V. If another resistor R is connected in parallel with a voltmeter, then

An ammeter and a voltmeter are joined in sereis to a cell. Their readings are A and V respectively. If a resistance is now joinding parallel with the voltmeter. Then

An ammeter and a voltmeter are connected in series to an ideal battery of emf E. If the ammeter reads I and voltmeter reading V, then

A battery of electro motive force E is connected in series with a resistance R and a voltmeter. An ammeter is connected in parallel with the battery.

An ammeter and a voltmeter are initially connected in series to a battery of zero internal resistance. When switch S_(1) is closed the reading of the voltmeter becomes half of the initial, whereas the reading of the ammeter becomes double. If now switch S_(2) is also closed, then reading of ammeter becomes :

Resistance of 100 Omega and 200 Omega are connected in series with 220 V mains. When a voltmeter of 1000 Omega resistance is connected in parallel to 100 Omega , then the reading of voltmeter is

A voltmeter of resistance R_1 and an ammeter of resistance R_2 are connected in series across a battery oif negligible internal resistance. When as resistance R is connected in parallel to voltmeter reading of ammeter increases three times white that of voltmeter reduces to one third. Find the ratio of R_1 and R_2 .

A resistance of 1980Omega is connected in series with a voltmeter, after which the scale division becomes 100 times larger. Find the resistance of voltmeter.

If the resistance R_1 is increased , how will the readings of the ammeter and voltmeter change?