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 1 of 3.

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

Amina said:   6 months ago
For getting micro A, it should be 10^-6,
So, to get 10^-6 we have to divide it by 10 i.e multiply by 10^-1.
So, if we divide by 10, to make the value the same we have to multiply by 10.
i.e 3.2 x 10^-5 x 10^ -1 x 10)= 32 x 10^-6 = 32 micro A.
(1)

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.

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)

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.

Agat said:   2 years ago
1 micro−ampere = 10 − 6 A = 1/10^6. = 0.000001
3.2 × 10–5 A = 3.2 x 1/10^5 = 0.000032.
Therefore; 3.2 x 10^-5 A= 32 micro- ampere.
(1)

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.

Venkateswararaoulli said:   1 decade ago
3.2*10^-5
we can multiply and dived by 10
3.2(10/10)*10^-5
we know that
3.2/10= 32,1/10=10^-1
then
32*10^-5*10^-1=32*10^-6

Dinesh said:   1 decade ago
3.2*10-5

multiple and divide by 10

=(3.2*10^-5*10)/10
=(32*10^-5)/10
=(32*10^-5*10-1)
=32*10^-6
=32uA (1uA=10^-6)

Girish said:   3 years ago
This answer is not 32 µA. It's 320 ma
= 3.2*10^-5,
= 3.2*10^-5*10^-3,
= 3.2*10^-2,
= 320mA.
(7)


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