English

Three identical cells each of emf 'e' are connected in parallel to form a battery. What is the emf of the battery?

Advertisements
Advertisements

Question

Three identical cells each of emf 'e' are connected in parallel to form a battery. What is the emf of the battery?

One Line Answer
Advertisements

Solution

In a parallel combination, emf of the battery = emf of each cell = e.

shaalaa.com
  Is there an error in this question or solution?
2023-2024 (March) Official

RELATED QUESTIONS

State the underlying principle of a potentiometer ?


State any one use of a potentiometer.


In a potentiometer experiment, when the galvanometer shows no deflection, then no current flows through ____________.


In the potentiometer experiment, the balancing length with cell E1 of unknown e.m.f. is ℓ1 cm. By shunting the cell E1 with resistance 'R' which is equal to internal resistance (r) of the cell E1, the balancing length ℓ2 is ______


AB is a wire of potentiometer with the increase in the value of resistance R, the shift in the balance point J will be ______.


AB is a wire of potentiometer with the increase in value of resistance R, the shift in the balance point J will be:


In an experiment with a potentiometer, VB = 10V. R is adjusted to be 50Ω (Figure). A student wanting to measure voltage E1 of a battery (approx. 8V) finds no null point possible. He then diminishes R to 10Ω and is able to locate the null point on the last (4th) segment of the potentiometer. Find the resistance of the potentiometer wire and potential drop per unit length across the wire in the second case.


Two cells of same emf but different internal resistances r1 and r2 are connected in series with a resistance R. The value of resistance R, for which the potential difference across second cell is zero, is ______.


In potentiometer experiment, null point is obtained at a particular point for a cell on potentiometer wire x cm long. If the length of the potentiometer wire is increased without changing the cell, the balancing length will ______. (Driving source is not changed) 


What is the internal resistance of the cell?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×