What is the SI unit of electric current?
Ampere
The SI base unit of electric current is the ampere (A), named after Andre-Marie Ampere. One ampere equals a flow of one coulomb of charge per second: \(1\,\text{A}=1\,\text{C/s}\).
Newton is the unit of force, joule of energy/work, and watt of power (\(P=VI\)) — none of these measure current itself.
Important Questions from Network Elements
Two bulbs of 500 W and 200 W rated at 250 V will have resistance ratio as
Which of the following value of a complex current wave is equal to the square root of the sum of the square of the RMS value of the individual components?
What is the SI unit of electric charge?
Calculate the total DC resistance of a 100 metre roll of 2.5 mm2 copper wire if the resistivity of copper at 20° C is 1.72 × 10-8 Ω metre
If three 5 μF capacitors are connected in parallel, then the net capacitance is
