A cell supplies a current i(1) trhough a...

A cell supplies a current `i_(1)` trhough a resistnace `R_(1)` and a current `i_(2)` through a resistance `R_(2)`. The internal resistance of this cell is

`R_(2)-R_(1)`

`(i_(1)R_(2)-i_(2)R_(1))/(i_(1)-i_(2))`

`(i_(2)R_(2)-i_(1)R_(1))/(i_(1)-i_(2))`

`((i_(1)+i_(2))/(i_(1)-i_(2)))sqrt(R_(1)R_(2))`

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

CURRENT ELECTRICITY
DC PANDEY|Exercise B. Assertion and reason|18 Videos
CURRENT ELECTRICITY
DC PANDEY|Exercise Match the columns|4 Videos
CURRENT ELECTRICITY
DC PANDEY|Exercise Check point|70 Videos
COMMUNICATION SYSTEM
DC PANDEY|Exercise Subjective|11 Videos
ELECTROMAGNETIC INDUCTION
DC PANDEY|Exercise Medical entrances gallery|25 Videos

Similar Questions

Explore conceptually related problems

A cell sends a current through a resistance R_(1) for time t , next the same cell sends current through another resistance R_(2) for the time t If the same amount of heat is developed in both the resistance then find the internal resistance of the cell

A cell develops the same power across two resistances R_(1) and R_(2) separately. The internal resistance of the cell is

When a celll is connected to an external resistance R_(1) , current through it is i_(1) . When the same cell is connected to an external resistance R_(2) , current through it is i_(2) . Calculate the emf and internal resisance of the cell.

In the network shown calculate current through the cell (I_1) and the current I_(2) through the 2 R resistance.

A cell of constant e.m.f. first connected to a resistance R_(1) and then connected to a resistance R_(2) . If power delivered in both cases is then the internal resistance o f the cell is

Two similar cells, whether joined in series or in parallel, have the same current through an external resistance of 2Omega . The internal resistance of each cell is :

DC PANDEY-CURRENT ELECTRICITY-Taking it together

The n rows each containinig m cells in series are joined parallel. Max...
Text Solution
|
A 100 V voltmeter of internal resistance 20 k Omega in series with a h...
Text Solution
|
A cell supplies a current i(1) trhough a resistnace R(1) and a current...
Text Solution
|
Out of five resistance of ROmega each 3 are connected in parallel and ...
Text Solution
|
Two batteries A and B each of e.m.f. 2 V are connected in series to a...
Text Solution
|
For a cell of e.m.f. 2 V , a balance is obtained for 50 cm of the po...
Text Solution
|
AB is a potentiometer wire of length 100 cm and its resistance is 10Om...
Text Solution
|
Equivalent resistance between the points A and B (in Omega) .
Text Solution
|
In the circuit shown here, what is the value of the unknown resistor R...
Text Solution
|
Two wire of the same meta have same length, but their cross-sections a...
Text Solution
|
The masses of the three wires of copper are in the ratio 5:3:1 and the...
Text Solution
|
If power dissipated in the 9 Omega resistor in the circuit shown is 36...
Text Solution
|
The reading of the ammeter in the following figure will be
Text Solution
|
A wire of length 100 cm is connected to a cell of emf 2 V and negli...
Text Solution
|
Two uniform wires A and B are of the same total metal and have equal m...
Text Solution
|
In the given circuit, the resistances are given in ohm. The current t...
Text Solution
|
The current I drawn from the 5 volt source will be
Text Solution
|
The current in the given circuit is
Text Solution
|
Two resistors 400Omega and 800Omega are connected in series with a 6V ...
Text Solution
|
A battery of emf E has an internal resistance r. A variable resistacne...
Text Solution
|