Home
Class 12
PHYSICS
A battery of emf E and internal resistan...


A battery of emf E and internal resistance r is connected with an external resistance R as shown in the figure. The battery will act as a constant voltage source if

A

`r lt lt R`

B

`r gt gt R`

C

`r =R`

D

It will never act as a constant voltage source.

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

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 ?

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 is to external resistance B The maximum point is the external circuit is 9W The current flowing in the circuit under the condition is 3A What is the value of E in volt ?

(a) A cell of emf E and internal resistance r is connected to a resistance R . (i) Relate r and R , so that power in R is maximum. (ii) Maximum power consumed by R . (iii) Efficiency. (b) Find value r in terms of R so that power in external circuit is maximum. (c) A battery of internal resistance 4Omega is connected to the network of resistance as shown in the figure. what must be the value of R so that maximum power is delivered to the network? what is tha maximum power?

A cell of e.m.f (E) and internal resistance (r) is connected in series with an external resistance (nr.) then the ratio of the terminal p.d. to E.M.F is

A battery is of emt E and internal resistance r . The value of external resistance R so that the power across eternal resistance is maximum :