If the resistors are in the linear zone of operation, the potential difference across them, must obey Ohm's law:
For the 6.0 Ω resistor, if the potential difference across it is 15 V, we can find the current flowing through it as follows:
In a series circuit, the current is the same at any point of it, so the current through the battery is I = 2.5 A
The equivalent resistance of a series circuit is just the sum of the resistances, so, in this case, we can write the following equation:
Applying Ohm's Law to the equivalent resistance, we can find the potential difference through it, that must be equal to the potential difference across the battery, as follows:
Each of the pixels on a computer monitor or TV screen is composed of phosphors surrounded by a black mask. The different colors we see are results from different combinations and intensities of these three primary colors (Red, Green, and Blue).
The Ammeter shows: I = 15 A, The circuit resistance is R = 0.2 Ohms. By the Ohm`s Law: R = V / I or: V = I · R V = 15 A · 0.2 Ohms V = 3 V Answer: C ) 3 V.
