kirchhoffs law

Question 1

kirchhofs 1st law

diff . scientific idea and mathmatical fourmla

Answer 1

1. the sum of currnts that entered in any node in the closed circuit equels the sum of current that let out from the same node OR the sum of currents [concerning their direction] at any node in the closed circuit equels zero
2. law of conservation of electric charges
3. Σ I = 0

NOTE ; consider the direction of the current enters the node is +VE while the direction of the current leaves out the node is –VE

Question 2

kirchof 2st law

diif , scientific idea is base on , mathmatical fourmla

Answer 2

1. the sum of electro motive forces in the closed circuit must be equel to the sum of the potential differance across the components of the circuit OR THE SUM OF POTENTIAL DIFFERANCE ( CONCERNING THEIR DIRECTIONS ) IN ANY CLOSED LOOP IN THE ELECTRICAL CIRCUIT IS EQUEL ZERO
2. law of conservation of energy
3. Σ V_B = Σ IxR

Question 3

ازاي تحل مسئلة كيرشوف

Answer 3

1. تسمية الشكل الهندسي
2. افترض اتجاهات current عشوائب
3. وضع الاشارات علي كل بطارية و كل resistor حسب اتجاه التيار المفترض
4. عمل المعدلات مع مراعات تطبيق KCL عند كل node in the circuit

NOTE ;مرا عة رسم المقاومة الداخلية بجوار البطارية