Respuesta :
(a) Current: Current (I) is the flow of electric charge per unit of time. The unit of current is the Ampere (A), where 1 Ampere is equivalent to 1 Coulomb of charge flowing per second.
(b) Ohm’s Law: Ohm's Law states that the current (I) flowing through a conductor between two points is directly proportional to the voltage (V) across the two points, provided the temperature remains constant. Mathematically, Ohm's Law is expressed as: \( I = \frac{V}{R} \), where I is current, V is voltage, and R is resistance.
(c) Resistance: Resistance (R) is the opposition that a substance offers to the flow of electric current. It is measured in Ohms (\(\Omega\)). The higher the resistance, the more difficult it is for current to flow through a material.
(d) Resistivity: Resistivity (\(\rho\)) is an inherent property of a material that quantifies its ability to resist the flow of electric current. It is measured in Ohm-meter (\(\Omega \cdot m\)). Resistivity is used in the formula \( R = \frac{\rho \cdot L}{A} \), where R is resistance, \(\rho\) is resistivity, L is the length of the conductor, and A is the cross-sectional area.
(b) Ohm’s Law: Ohm's Law states that the current (I) flowing through a conductor between two points is directly proportional to the voltage (V) across the two points, provided the temperature remains constant. Mathematically, Ohm's Law is expressed as: \( I = \frac{V}{R} \), where I is current, V is voltage, and R is resistance.
(c) Resistance: Resistance (R) is the opposition that a substance offers to the flow of electric current. It is measured in Ohms (\(\Omega\)). The higher the resistance, the more difficult it is for current to flow through a material.
(d) Resistivity: Resistivity (\(\rho\)) is an inherent property of a material that quantifies its ability to resist the flow of electric current. It is measured in Ohm-meter (\(\Omega \cdot m\)). Resistivity is used in the formula \( R = \frac{\rho \cdot L}{A} \), where R is resistance, \(\rho\) is resistivity, L is the length of the conductor, and A is the cross-sectional area.
