Electrical Engineering - Quantities and Units - Discussion

Discussion Forum : Quantities and Units - General Questions (Q.No. 10)
10.
The number 3.2 × 10–5 A expressed using a metric prefix is
32 µA
3.3 µA
320 mA
3,200 mA
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
25 comments Page 2 of 3.

Saritha said:   8 years ago
1A = 10^6micro amp.
1micro amp = 10^-6A.
3.2*10^-5A = 32/10*(10^-5)A,
= 32*(10^-1)(10^-5)A,
= 32*10^-6A,
= 32micro amp.
(5)

Shreeshail said:   9 years ago
Thanks for all the explanation.

Nageah said:   9 years ago
3.2(1/100000) then solve this and get 32mA.

SHAILENDRA said:   1 decade ago
= 3.2*10^-5
= 3.2*10/100000
= 32/100000.
= 32 MA.
(1)

UPASNA said:   1 decade ago
3.2*10^10^-5.

(32/10)*10^-5.

32*10^(-5-1).

32*10^-6/

32 uA.

Rafiqul Islam said:   1 decade ago
3.2/100000= 0.000032.
Now we know 1µ = 10^6.

So,
0.000032*10^6= 32 µA.

Prince Janesh Unique said:   1 decade ago
Lets us discuss simply manner.

First we should know that 1µA = 10^-6A-----(1).

THEN, 3.2*10^-5 {now move the left side to decimal point then inc +0 on right} 32*10^-6.

32*10^-6 = 32*1µA (because from eq(1) we studied that 1µA = 10^-6).
= 32µA is the answer

Harshal ghatol said:   1 decade ago
3.2 x 10^-5 = 0.032 x 10^-3.
= 0.000032.

Then converting it in metric prefix.
Shift dec point 6 digit right.
= 32 x 10^-6.
= 32uA.

Shabab Malik said:   1 decade ago
3.2*10^-5
We can write 3.2 as 32/10.

32/10*10^-5.

32*10^-5-1.

32*10-6.

So we know,
10^-6= 1 micro.

32*1 micro.

32u answer.

Pavani said:   1 decade ago
3.2*10^-5.
We can write 3.2 is (32/10).

So,
-->(32/10)*10^-5,
-->We can rewrite (32/10)is (32*10^-1),

-->Then,
-->32*10^-1*10^-5.
-->32*10^(-1-5).
-->32*10^-6.

-->Answer is 32 micro amp.


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