English
Tamil Nadu Board of Secondary EducationHSC Science Class 12

State Kirchhoff’s current rule. - Physics

Advertisements
Advertisements

Question

State Kirchhoff’s current rule.

Short Note

Solution

  1. Kirchhoff’s current rule states that the algebraic sum of the currents at any junction of a circuit is zero. 
    i.e `Σ_"junction"` i = 0
  2. It is a statement of conservation of electric charge.
shaalaa.com
  Is there an error in this question or solution?
Chapter 2: Current Electricity - Evaluation [Page 120]

APPEARS IN

Samacheer Kalvi Physics - Volume 1 and 2 [English] Class 12 TN Board
Chapter 2 Current Electricity
Evaluation | Q II. 13. | Page 120

RELATED QUESTIONS

The current is drawn from a cell of emf E and internal resistance r connected to the network of resistors each of resistance r as shown in the figure. Obtain the expression for

  1. the current draw from the cell and
  2. the power consumed in the network.


Find the equivalent resistances of the networks shown in the figure between the points a and b.


Consider the potentiometer circuit as arranged in the figure. The potentiometer wire is 600 cm long. (a) At what distance from the point A should the  jockey touch the wire to get zero deflection in the galvanometer? (b) If the jockey touches the wire at a distance of 560 cm from A, what will be the current in the galvanometer?


The instrument for the accurate measurement of the e.m.f of a cell is ______.


Kirchhoff’s second law is a consequence of law of conservation of ______.


While measuring the length of the rod by vernier callipers, the reading on the main scale is 6.4 cm and the eight divisions on vernier is in line with marking on the main scale division. If the least count of callipers is 0.01 and zero error - 0.04 cm, the length of the rod is ______.


The e.m.f of The battery in a thermocouple is doubled. The rate of heat generated at one of the junction will.


Three resistors having resistances r1, r2 and r3 are connected as shown in the given circuit. The ratio `i_3/i_1` of currents in terms of resistances used in the circuit is:


Why are alloys used for making standard resistance coils?


Derive the equation of the balanced state in a Wheatstone bridge using Kirchhoff’s laws.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×