Question
Write Kirchhoff's rules for electric circuit.

Answer

First law (junction rule) : Algebraic sum of all the currents meeting at a junction in any closed circuit is zero. which means $\Sigma I =0$
Second law (loop rule): According to this law, the algebraic sum of the products of currents and resistances of any closed loop of any electric circuit is equal to the algebraic sum of electromotive forces working in that loop.
i.e.,$\Sigma E =\Sigma V =\Sigma IR$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Three charges $-q, Q$ and $-q$ are situated at equal distances in a straight line. If the total potential energy of the system of all three charges is zero, then what will be the value of ratio $Q : q$ ?
If an electron has a wavelength, does it also have a colour?
Can you think of two particles which do not exert gravitational force on each other?
A farsighted person cannot see objects placed closer to 50cm. Find the power of the lens needed to see the objects at 20cm.
A wire of 15 $\Omega$ resistance is gradually stretched to double its original length. It is then cut into two equal parts. These parts are then connected in parallel across a 3.0 volt battery. Find the current drawn from the battery.
What information would you wish to know about the galvanometer before converting it into an ammeter or voltmeter?
If a person lives on the average 100 years in his rest frame how long does he live in the earth frame if he spends all his life on a spaceship going at 60% of the speed of light.
Determine the distance of closest approach when an alpha particle of kinetic energy 4·5 MeV strikes a nucleus of Z = 80, stops and reverses its direction.
Can the voltage drop across the inductor or the capacitor in a series LCR circuit be greater than the applied voltage of the a.c. source? Justify your answer.
Sketch the magnetic field lines for a current-carrying circular loop near its centre. Replace the loop by an equivalent magnetic dipole and sketch the magnetic field lines near the centre of the dipole. Identify the difference.