资讯

The intensity of electron flow is known as amperage. The unit of electron flow is the ampere. One ampere equals a current flow of 6.25 x 10 18 electrons through a circuit in one second. At a fixed ...
Current, potential difference, power and resistance can be calculated to analyse circuits including potential dividers and Wheatstone bridges. Calculations may involve several steps. Part of ...
Resistance can be calculated using Ohm's law, which states that resistance equals voltage divided by current, or R = V/I (more commonly written as V = IR), where R is resistance, V is voltage and ...
Fitting a linear function to just the low current values of the data, I get a "cold" resistance of 161.5 Ω. When the bulb is glowing, the resistance (the slope of the curve) is around 490 Ω.
Use Ohms law to relate resistance, current and voltage. In National 5 Physics calculate the resistance for combinations of resistors in series and parallel.
Because dynamic resistance is the yardstick by which you should measure protection devices, the question is how to calculate this parameter if the data sheet does not list it. You can easily calculate ...
This is achieved by supplying a fraction of the load voltage V L as a reference voltage. With the jumper J2 in (and J1 out), the voltage at the non-inverting inputs of U1A and U1B is determined by V L ...
For current to flow, it must overcome the body’s resistance, which requires sufficient voltage. A car battery’s 12 volts simply aren’t strong enough to push enough current through the body ...