Solveeit Logo
Login

Question

Question: Find the value of 1mA = ………… \(\begin{aligned} & (a)\text{ }1000A \\\ & (b)\text{ }{{10}^{-...

Find the value of 1mA = …………
(a) 1000A (b) 10−3A (c) 1Cs−1 (d) None \begin{aligned} & (a)\text{ }1000A \\\ & (b)\text{ }{{10}^{-3}}A \\\ & (c)\text{ }1C{{s}^{-1}} \\\ & (d)\text{ None} \\\ \end{aligned}

Explanation

Solution

Hint: 1 milli ampere can be determined as the smaller unit of current. So, use the milli value to convert the required result.

Complete step by step answer:
The SI unit of electric current is Ampere. This means if in one second a charge of one coulomb flows through an area then there is a generation or conduction of one ampere current. Current two have smaller units like milli and micro ampere.
One milliampere current equals to ten raise to the power minus three ampere i.e.,
1mA=10−3A1mA={{10}^{-3}}A
So, the correct option is (b).

Additional Information:
Do you know how we get electricity in our house? Or how any electrical appliances get electricity? It’s just a simple question and I think we all know the answer as we have studied in lower class that we got electricity just because of electric current.
Electric current can also be simply termed as the flowing of electric charges. We electric charges remain stable at one position or we can call them they are at rest then current is generated because there are no movement of charges and when electric charges are in motion then the current is generated or we can call flow of electric charges generates electric current and conducts electricity.
An electric charge always flows through conductors and conductors are only responsible for conducting electricity. Have you ever thought about how electric charges flow? Electric charges flow just because of the potential difference between two charges that is when one charge is charged with one potential while other with different potential that means there is some potential difference and this is the only reason electric charge flows and generates current or conducts electricity.

Note: Never become confused in milli and micro ampere. Microampere is the smaller unit of current.
Students often get confused with option (a) and option (b). But 1000A will be one microampere and 10−3A{{10}^{-3}}A is one milli-ampere.
Another approach to find the answer is, to find milli we should divide by 1000. You will get the answer as above.