Relation b/w current potential difference and resistivity
Answers
Answer:
The relationship between these three are defined by OHM's law. It says that the current (in amperes) flowing into the circuit is the voltage divided by resistance (or impedance) of the circuit. ... If you keep the same resistance & increase (or decrease) the source voltages, the current will increase (or decrease).
Answer:
The relationship between these three are defined by OHM’s law.
It says that the current (in amperes) flowing into the circuit is the voltage divided by resistance (or impedance) of the circuit.
I=V/RI=V/R
It is also expressed in two more forms,
R=V/IR=V/I
V=IR.V=IR.
These are the interchangeability of algebraic terms. The law is also written by explanation of these equations, but the law remains same.
Think of voltage as pressure, resistance as the tap/valve of a pipe and current as the flow of water for simplified understanding. In a pipe, if you open the tap a little bit (less resistance to flow), the flow increases. And if you close the tap a little bit (more resistance to flow), the flow reduces.
Similarly, If you add some more resistance, the source being unchanged, the current will change (reduce actually).
If you keep the same resistance & increase (or decrease) the source voltages, the current will increase (or decrease).