English
Karnataka Board PUCPUC Science 2nd PUC Class 12

Determine the equivalent resistance of networks shown in Fig. - Physics

Advertisements
Advertisements

Question

Determine the equivalent resistance of networks shown in Fig.

Numerical
Advertisements

Solution

It can be observed from the given circuit that five resistors of resistance R each are connected in series.

Hence, equivalent resistance of the circuit = R + R + R + R + R

= 5 R

shaalaa.com
  Is there an error in this question or solution?

Video TutorialsVIEW ALL [2]

RELATED QUESTIONS

Kirchhoff's voltage law and current law are respectively in accordance with the conservation of .................................. .

  1. charge and momentum
  2. charge and energy
  3. energy and charge
  4. energy and momentum

Determine the equivalent resistance of networks shown in Fig.


State Kirchhoff's rules for an electric network. Using Kirchhoff's rules, obtain the balance condition in terms of the resistances of four arms of Wheatstone bridge.


Consider the circuit shown in the figure. Find (a) the current in the circuit (b) the potential drop across the 5 Ω resistor (c) the potential drop across the 10 Ω resistor (d) Answer the parts (a), (b) and (c) with reference to the figure.


An infinite ladder is constructed with 1 Ω and 2 Ω resistors, as shown in the figure. (a) Find the effective resistance between the points A and B. (b) Find the current that passes through the 2 Ω resistor nearest to the battery.


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?


State Kirchhoff’s current rule.


State Kirchhoff ’s voltage rule.


State and explain Kirchhoff’s rules.


How the emf of two cells are compared using potentiometer?


Figure shows current in a part of an electrical circuit. Then current I is ______.


Assertion: Kirchhoff’s junction rule follows from conservation of charge.
Reason: Kirchhoff’s loop rule follows from conservation of momentum.


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.


Kirchhoff’s junction rule is a reflection of ______.

  1. conservation of current density vector.
  2. conservation of charge.
  3. the fact that the momentum with which a charged particle approaches a junction is unchanged (as a vector) as the charged particle leaves the junction.
  4. the fact that there is no accumulation of charges at a junction.

State the two Kirchhoff’s rules used in the analysis of electric circuits and explain them.


A 6-volt battery is connected to the terminals of a three-metre-long wire of uniform thickness and resistance of 100 ohms. The difference of potential between two points on the wire separated by a distance of 50 cm will be ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×