kirchhoff's laws |Kirchhoff's Current Law | Kirchhoff's Voltage Law| Class 10
- 4 years ago
Today in this video I’m going to explain you about the two laws which is now a days very useful to us
With that two laws our life made very easy to work and that two laws are Kirchhoff’s Current law and Kirchhoff’s Loop law.
The full name of Kirchhoff’s is GASTAV ROBERT KIRCHHOFF and his introduced these laws in the year of 1847 and he is a German physicist.
Kirchhoff’s current law (k c l):-
The algebraic sum of the currents meeting at a junction in a circuit is zero (or you can say that) at any junction in a circuit the sum of the currents entering into the junction is equal to the sum of the currents leaving the junction is knows as Kirchhoff’s current law. It is also called Kirchhoff’s junction law. This law is based on the conservation of charge.
Kirchhoff’s voltage law (k v l):-
This law explains us that the algebraic sum of all the potential difference in a closed loop is zero
In any closed loop in a circuit the sum of Electro motive force = Energy in = Energy out. This law is based on the conservation of energy.
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Potential Difference:-
Work done by the electric force on unit positive charge to move through a distance “l” from A to B is knows as Potential difference and it is denoted by a symbol V.
Electro Motive Force:-
W/q is the work done by the chemical force on unit negative charge to move it from positive terminal to negative terminal is knows as electro motive force.
Sign convention:-
1. EMF of the battery is taken as negative when we move positive terminal to negative terminal across the battery.
2. It is taken as positive when we move across the battery from negative terminal to positive terminal.
3. The direction of electric current is to be observed to give a sign potential difference of a resistor.
4. The potential difference across the resistor is taken as negative when we move along the direction of electric current through the resistor.
5. It is taken as positive when we move against the direction of electric current through the resistor.
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With that two laws our life made very easy to work and that two laws are Kirchhoff’s Current law and Kirchhoff’s Loop law.
The full name of Kirchhoff’s is GASTAV ROBERT KIRCHHOFF and his introduced these laws in the year of 1847 and he is a German physicist.
Kirchhoff’s current law (k c l):-
The algebraic sum of the currents meeting at a junction in a circuit is zero (or you can say that) at any junction in a circuit the sum of the currents entering into the junction is equal to the sum of the currents leaving the junction is knows as Kirchhoff’s current law. It is also called Kirchhoff’s junction law. This law is based on the conservation of charge.
Kirchhoff’s voltage law (k v l):-
This law explains us that the algebraic sum of all the potential difference in a closed loop is zero
In any closed loop in a circuit the sum of Electro motive force = Energy in = Energy out. This law is based on the conservation of energy.
……………........... ……………………. …………………………… ……………………………..
Potential Difference:-
Work done by the electric force on unit positive charge to move through a distance “l” from A to B is knows as Potential difference and it is denoted by a symbol V.
Electro Motive Force:-
W/q is the work done by the chemical force on unit negative charge to move it from positive terminal to negative terminal is knows as electro motive force.
Sign convention:-
1. EMF of the battery is taken as negative when we move positive terminal to negative terminal across the battery.
2. It is taken as positive when we move across the battery from negative terminal to positive terminal.
3. The direction of electric current is to be observed to give a sign potential difference of a resistor.
4. The potential difference across the resistor is taken as negative when we move along the direction of electric current through the resistor.
5. It is taken as positive when we move against the direction of electric current through the resistor.
If you like my videos and to Motivate me please like and subscribe to my channel and press bell icon to get instant notification and Share my videos to help your best friends and to suggest me or you have any doubts you can comment me in Comment box.
Follow my channel: - https://youtu.be/rabJ24644s4