An ammeter reads a current of 30A when it is connected across the terminals of a cell of emf 1.5V. Neglecting the meter resistance, find the amount of heat produced in the battery in 10seconds?

An ammeter reads a current of 30 A when it is connected across the terminals of a cell of emf 2 V. Neglecting the meter resistance, find the amount of heat (in calories) in cell in 20 seconds.

A current of 30 A is registered when the terminals of a dry cell of emf 1.5 volts are connected through an ammeter. Neglecting the meter resistance, find the amount of heat produced in the battery in 10 seconds.

A current of 30A is registered when the terminals of a dry cell of emf 1.5 V are connected through an ammeter. (Neglect the ammeter resistance). The amount of heat produced (in joule) in the battery in 20s is

When a resistance of 2 ohm is connected across terminals of a cell, the current is 0.5 A . When the resistance is increased to 5 ohm, the current is 0.25 A The e.m.f. of the cell is

A voltmeter of resistance 100 Omega connected to the terminals of a cell reads 2 V. When the voltmeter is replaced by a resistance 1Omega and an ammeter of 1Omega , the ammeter reads 1 A. The EMF of the cell is __________ V.

A cheap voltmeter with an internal resistance of 30Omega is connected to the terminals of a battery whose internal resistance is 5Omega and true emf 1.5 V. What would be the terminal voltage as read by the voltmeter?

When a resistance of 2 Omega is connected across the terminals of a cell, the current is 0.5 A. When resistance is increased to 5 Omega , the current is 0.25 A. the emf of the cell is

A voltmeter has a resistance of 1000 Omega . What will be its reading when it is connected across a cell of emf 2V and internal resistance 10 Omega ?

A battery has an open circuit potential difference 10 V between the terminals. When loads 9Omega and 4 Omega are connected one by one across the battery , the power in the load resistance is the same. The amount of heat approximately generated in one second in the load when a load of 5Omega Is connected across the battery will be