shaalaa.com
S

Solution - A Secondary Cell After Long Use Has an Emf of 1.9 V and a Large Internal Resistance of 380 Ω. What Maximum Current Can Be Drawn from the Cell? Could the Cell Drive the Starting Motor of a Car? - Cells, Emf, Internal Resistance

Account
User


Login
Register


      Forgot password?
Share
Notifications

View all notifications
Books Shortlist
Your shortlist is empty

Question

A secondary cell after long use has an emf of 1.9 V and a large internal resistance of 380 Ω. What maximum current can be drawn from the cell? Could the cell drive the starting motor of a car?

Solution

You need to to view the solution
Is there an error in this question or solution?

Similar questions VIEW ALL

Two cells of emfs 1.5 V and 2.0 V,  having internal resistances 0.2 Ω and 0.3 Ω, respectively, are connected in parallel. Calculate the emf and internal resistance of the equivalent cell.

view solution

Distinguish between emf and terminal voltage of a cell.

view solution

In a potentiometer arrangement, a cell of emf 1.25 V gives a balance point at 35.0 cm length of the wire. If the cell is replaced by another cell and the balance point shifts to 63.0 cm, what is the emf of the second cell?

view solution

A battery of emf 12 V and internal resistance 2 Ω is connected to a 4 Ω resistor as shown in the figure.

(a) Show that a voltmeter when placed across the cell and across the resistor, in turn, gives the same reading.

(b) To record the voltage and the current in the circuit, why is voltmeter placed in parallel and ammeter in series in the circuit?

view solution

A cell of emf 'E' and internal resistance 'r' is connected across a variable load resistor R. Draw the plots of the terminal voltage V versus (i) R and (ii) the current I.

It is found that when R = 4 Ω, the current is 1 A and when R is increased to 9 Ω, the current reduces to 0.5 A. Find the values of the emf E and internal resistance r.

view solution

Content BooksVIEW ALL [1]

Solution for question: A Secondary Cell After Long Use Has an Emf of 1.9 V and a Large Internal Resistance of 380 Ω. What Maximum Current Can Be Drawn from the Cell? Could the Cell Drive the Starting Motor of a Car? concept: Cells, Emf, Internal Resistance. For the courses 12th CBSE (Arts), 12th CBSE (Commerce), 12th CBSE (Science)
S