Home
Class 12
PHYSICS
A cell supplies a current of 2A to an ex...

A cell supplies a current of 2A to an exertnal resistance of `2Omega ` and a current of 1 ampere to another external resistance of `4.5 Omega ` connected across the cell separately . Select the correct alternative (s).

A

Emf of the cell is 5 V

B

Emf of the cell is 4.25 V

C

Internal resistance of the cell is 0.5`Omega`

D

Internal resistace of the cell is `3.25 Omega `

Text Solution

Verified by Experts

The correct Answer is:
(1, 3)
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    AAKASH INSTITUTE|Exercise ASSIGNMENT SECTION-E (ASSERTION-REASON TYPE QUESTION)|13 Videos

  • CURRENT ELECTRICITY

    AAKASH INSTITUTE|Exercise ASSIGNMENT SECTION-J(MATRIX-MATCH TYPE QUESTIONS)|2 Videos

  • CURRENT ELECTRICITY

    AAKASH INSTITUTE|Exercise ASSIGNMENT SECTION-B(OBJECTIVE TYPE QUESTION ))|31 Videos

  • COMMUNICATION SYSTEMS

    AAKASH INSTITUTE|Exercise ASSIGNMENT SECTION D (Assertion-Reason)|10 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    AAKASH INSTITUTE|Exercise ASSIGNMENT (SECTION-D)|10 Videos

Similar Questions

Explore conceptually related problems

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.

24 cells of emf 1.5 V each having internal resistance of 1 Omega are connected to an external resistance of 1.5Omega . To get maximum current,

The internal resistance of a 2.1 V cell which gives a current 0.2 A through a resistance of 10 Omega

The cell has an emf of 2 V and the internal resistance of this cell is 0.1 Omega , it is connected to resistance of 3.9 Omega , the voltage across the cell will be

The cell has an emf of 2 V and the internal resistance of this cell is 0.1 Omega , it is connected to resistance of 3.9 Omega , the voltage across the cell will be