When a Laclanche cell is connected to a ...

When a Laclanche cell is connected to a `10Omega` resistance then a current of 0.25 ampere flows in the circuit. If the resistance is reduced to `4Omega` then current becomes 0.5ampere. The internal resistance of galvanometer will be-

`1.5 Omega`

`0.5 Omega`

`1 Omega`

`2 Omega`

Text Solution

AI Generated Solution

Topper's Solved these Questions

COMMUNICATION SYSTEM
DISHA|Exercise Physics|25 Videos
DUAL NATURE OF MATTER AND RADIATION
DISHA|Exercise Physics|30 Videos

Similar Questions

Explore conceptually related problems

An total resistance R is connected to a cell of internal resistance r the maximum current flows in the external resistance, when

In an ammeter, 4% of the total current is passing through the galvanomter. If the shunt resistance is 5 Omega , then the resistance is Omega , then the resistance of the galvanometer will be

A 50V battery is connected across a 10 ohm resistor. The current is 4.5 amperes. The internal resistance of the battery is

When a bettery is connected to the resistance of 10Omega the current in the circuit is 0.12 A the same battery gives 0.07A current with 20Omega calculate e.m.f and internal resistance of the battery.

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 battery of unknown emf and internal resistance is given to a student for the experiment. When student connects the battery to an external resistance of 10 Omega then 1A current flows through the circuit and when the same is connected to 15 Omega resistance then 0.75 A current flows through the circuit . Calculate the emf and internal resistance of the given battery.

A cell of emf 1.1 V and internal resistance 0.5 Omega is connected to a wire of resistance 0.5 Omega . Another cell of the same emf is connected in series bur the current in the wire remain the same .Find the internal resistance of second cell

A cell of emf epsilon and internal resistance r gives a current of 0.5 A with an external resistance of 12 Omega and a current of 0.25 A with an external resistance of 25 Omega . Calculate (a) internal resistance of the cell and (b) emf of the cell.

The internal resistance of primary cell is 4Omega it generater a current of 0.2A in which chemical resistance connected is providing the current is

DISHA-CURRENT ELECTRICITY-Physics

The figure below shows current in a part of electric circuit. The curr...
Text Solution
|
A voltmeter can measure upto 25 volt and its resistance is 1000 Omega....
Text Solution
|
When a Laclanche cell is connected to a 10Omega resistance then a curr...
Text Solution
|
Consider the circuit shown in the figure. The current I(3) is equal to
Text Solution
|
If V(AB) = 4V in the given fig are, then resistance chi will be
Text Solution
|
In the given circuit the current I(1) is
Text Solution
|
To get the maximum current from a parallel combination of n identical ...
Text Solution
|
In the circuit shown below, if the value of R is increased then what w...
Text Solution
|
Twelve wire, each having resistance r, are joined to form a cube as sh...
Text Solution
|
The arrangement as shown in figure is called as
Text Solution
|
5When a cell of emf E and internal resistance r, is connected to the e...
Text Solution
|
The resistance of an ideal voltmeter is
Text Solution
|
An ammeter with internal resistance 90Omega reads 1.85 A when connec...
Text Solution
|
The figure shows a network of currents. The magnitude of currents is s...
Text Solution
|
Kirchoff’s laws are based on conservation of (1) charge (2) pote...
Text Solution
|
A microammeter has a resistance of 100W and a full scale range of 50 µ...
Text Solution
|
A 6V battery of negligible internal resistance is connected across a u...
Text Solution
|
A 6V battery of negligible internasl resistance is connected across a ...
Text Solution
|
Statement -1 : Voltameter measures current more accurately than ammete...
Text Solution
|
Statement - 1 : A larger dry cell has higher emf. Statement - 2 : The ...
Text Solution
|