A battery of e.m.f. 10 V and internal re...

A battery of e.m.f. `10 V` and internal resistance `0.5 ohm` is connected across a variable resistance `R`. The value of `R` for which the power delivered in it is maximum is given by

`2 Omega`

`0.25 Omega`

`1 Omega`

`0.5 Omega`

Text Solution

Verified by Experts

The correct Answer is:

For maximum power,
` therefore " " R=0.5 Omega`

Topper's Solved these Questions

CURRENT ELECTRICITY
BITSAT GUIDE|Exercise Bitsat Archives|26 Videos
CATHODE RAY, PHOTOELECTRIC EFFECT AND X-RAYS
BITSAT GUIDE|Exercise BITSAT Archives|6 Videos
ELECTRIC CAPACITOR
BITSAT GUIDE|Exercise BITSAT archives|6 Videos

Similar Questions

Explore conceptually related problems

A battery of emf 2V and internal resistance 0.5(Omega) is connected across a resistance in 1 second?

Three equal resistace, each of R ohm, are connectedd as shown in the figure. A battery of 2V and of internal resistance 0.1 ohm is connected across the circuit. The value of R for which the heat generated in the circuit maximum will be

A battery of epsilon and internal resistance r is used in a circuit with a variable external resistance R . Find the value of R for which the power consumed in R is maximum .

Three equal resistances, each of ROmega are connected as shown in figure. A battery of emf 2 V and internal resistance 0.1Omega is connected across the circuit. Calculate the value of R for which the heat generated in the circuit is maximum?

A battery of e.m.f. E and internal resistance r is connected to a variable resistor R as shown here. Which one of the following is true

A battery of emf E and internal resistance r is connected to a variable resistor R as shown in figure. Which one of the following is true ?

If a battery of emf E and internal resistance r is connected across a load of resistance R . Shot that the rate at which energy is dissipated in R is maximum when R = r and this maximur power is P = E^2//4r .

A cell having an emf E and internal resistance r is connected across a variable external resistance R. As the resistance R is increased, the plot of potential difference V across R is given by

BITSAT GUIDE-CURRENT ELECTRICITY-Bitsat Archives

A battery of e.m.f. 10 V and internal resistance 0.5 ohm is connected ...
Text Solution
|
Ohms law says
Text Solution
|
A current 4.0 A exist in a wire of cross-sectional area 2.0 mm^(2). If...
Text Solution
|
What will be the value of current I in the circuit shown ?
Text Solution
|
In the given circuit (as shown in figure), each capacitor has a capaci...
Text Solution
|
Three bulbs X, Y and Z are connected as shown in figure. The bulbs Y a...
Text Solution
|
In the circuit shown, the value of I in ampere is
Text Solution
|
In the circuit shown below, the ammeter reading is zero. Then, the val...
Text Solution
|
A steady current flow in a metallic conductor of non-uniform cross-sec...
Text Solution
|
Two bulbs which consume powers P(1) " and P(2) are connected in series...
Text Solution
|
Three conductors draw respectively currents of 1 A, 2 A and 4 A when c...
Text Solution
|
24 identical cells, each of internal resistance 0.5 Omega, are arrange...
Text Solution
|
A wire is stretched as to change its diameter by 0.25%. The percentage...
Text Solution
|
If in the circuit shown below, the internal resistance of the battery ...
Text Solution
|
When the potential difference applied across a solid conductor is incr...
Text Solution
|
A box with two terminals is connected in series with a 2 V battery, an...
Text Solution
|
A current of 2 A flows in an electric circuit as shown in figure. The ...
Text Solution
|
When a battery connected across a resistor of 16 Omega, the voltage ac...
Text Solution
|
If a rod has resistance 4 Omega and if rod is turned as half circle, t...
Text Solution
|
In the circuit, the potential difference across PQ will be nearest to
Text Solution
|
Each resistance shown in figure is 2 Omega. The equivalent resistance ...
Text Solution
|