linear momentum
Step 1: Kirchhoff’s junction rule (also known as the current law) states that the total current entering a junction equals the total current leaving the junction.
Step 2: This law is derived from the principle of conservation of charge, ensuring that no charge is lost or created at the junction.
Step 3: Therefore, Kirchhoff's junction rule is based on the conservation of charge.
Match List-I with List-II.
Choose the correct answer from the options given below :
A temperature difference can generate e.m.f. in some materials. Let $ S $ be the e.m.f. produced per unit temperature difference between the ends of a wire, $ \sigma $ the electrical conductivity and $ \kappa $ the thermal conductivity of the material of the wire. Taking $ M, L, T, I $ and $ K $ as dimensions of mass, length, time, current and temperature, respectively, the dimensional formula of the quantity $ Z = \frac{S^2 \sigma}{\kappa} $ is:
A quantity \( X \) is given by: \[ X = \frac{\epsilon_0 L \Delta V}{\Delta t} \] where:
- \( \epsilon_0 \) is the permittivity of free space,
- \( L \) is the length,
- \( \Delta V \) is the potential difference,
- \( \Delta t \) is the time interval.
The dimension of \( X \) is the same as that of: