Which conservation principle is involved in Kirchhoff.s first law of electric circuits ?

Kirchhoff's first law of electricity follows.

On which conservation principle is Kirchhoff.s second law of electrical networks based ?

E_(1) and E_(2) are two batteries having emfs of 3V and 4V and internal resistances of 2Omega and 1Omega respectively. They are connected as shown in Figure 2 below. Using Kirchhoff.s Laws of electrical circuits, calculate the currents I_(1) and I_(2) .

E_(1) and E_(2) are two batteries having emfs of 3V and 4V and internal resistances of 2Omega" and "1Omega respectively. They are connected as shown in Figure 2. Using Kirchhoff.s Laws of electrical circuits, calculate the current I_(1) and I_(2) .

There is no resistance in the inductive circuit Kirchhoff 's voltage law for the circuit is

In the circuit shown in figure below, E_(1) and E_(2) are two cells having emf 2 V and 3 V respectively and negligible internal resistances. Applying Kirchhoff.s laws of electrical networks, find the values of currents I_(1) and I_(2) .

In the circuit given, E_(1) "and" E_(2) are two cells emfs 4 V and 6 V respectively, having negligible internal resistance. Applying Kirchhoff.s law of electrical networks, find the values of I_(1) "and" I_(2) .

In the circuit shown in figure below, E_1 and E_2 are two cells having emfs 2 V and 3 V respectively, and negligible internal resistances. Applying Kirchhoff.s laws of electrical networks, find the values of currents I_1 and I_2 .

epsi_(1) and epsi_(2) are two batteries having e.m.f of 34V and 10V respectively and internal resistance of 1Omega and 2Omega respectively. They are connected as shown in figure below. Using Kirchhoff.s Laws of electrical networks, calculate the current I_(1) and I_(2)

Which of the following are involved in the first step of the Krebs' cycle?