Home
Class 12
PHYSICS
(a) Six lead-acid type of secondary cell...

(a) Six lead-acid type of secondary cells each of emf `2.0 V` and internal resistacne `0.015Omega` are joined in series to provide a supply to a resistance of `8.5 Omega.` What are the current drawn from the suply and its terminal voltage ?
(b) A secondary cell after long use has an emf of `1.9 V ` and a large internal resistance of `380 Omega.` What maximum current can be drawn from the cell? Could the cell drive tghe starting motor of a car ?

Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    NCERT GUJARATI|Exercise EXERCISES|12 Videos

  • ATOMS

    NCERT GUJARATI|Exercise ADDITIONAL EXERCISE|10 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    NCERT GUJARATI|Exercise EXERCISES|41 Videos

Similar Questions

Explore conceptually related problems

The storage battery of a car has an emf of 12 V. If the internal resistance of the battery is 0.4 Omega what is the maximum current that can be drawn from the battery ?

The storage battery of a car has an emf of 12 V. If the internal resistance of the battery is 0.4 Omega , what is the maximum current that can be drawn from the battery ?

A cell emf 3V and internal resistance 0.75Omega is connected to a nonlinear conductor whose V-I g raph is shown in figure obtain graphically the current drawn from the cell and its terminal voltage.

A battery of six cells each of e.m.f . 2V and internal resistance 0.5Omega is being charged by D.C. mains of e.m.f. 220V by using an external resistance of 10Omega . What is the potential difference across the battery?

A battery of six cells each of e.m.f. 2V and internal resistance 0.5Omega is being charged by D.C. mains of e.m.f. 220V by using an external resistance of 10Omega what will be the charging current.

A storage battery of emf 8.0 V and internal resistance 0.5 Omega is being charged by a 120 V de supply using a series resistor of 15.5 Omega . What is the terminal voltage of the battery during charging ?

Three cells of emf 1.5 V and internal resislance 1 Omega are connected in parallel. This combination will have the emf ....... .

100 cells each of emf 5V and internal resistance 1 Omega are to be arranged to produce maximum current in a 25 Omega resistance. Each row contains equal number of cells. Find the number of rows.

A battery of 20 cells (each having e.m.f. 1.8V and internal resistance 0.1Omega is charged by 220 volts and the charging current is 15A. Calculate the resistance to be put in the circuit.