Electrical Engineering - Quantities and Units - Discussion

Discussion Forum : Quantities and Units - General Questions (Q.No. 1)
1.
When these numbers are multiplied, (6 × 103) (5 × 105), the result is
3 × 108
30 × 108
300 × 109
3,000 × 107
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
52 comments Page 2 of 6.

Dhivya said:   9 years ago
Simply the number 5 & 6 are multiplied & the powers are added.
(2)

Engineer majid said:   6 years ago
The power of number is add when multiplied so that's why.
(1)

Harshitha said:   10 years ago
(6*10^3)*(5*10^5)
= 6*5*(10^3+5).
= 30*10^8.
(1)

Suresh k said:   9 years ago
Thank you for explaining the answer and providing the good shortcut method.
(1)

Shailu said:   1 decade ago
Is correct answer?

Raji said:   1 decade ago
Since the given numbers have a significant figure in each (6, 5), its product has two significant figures after multiplication.

= 6*10^3*5*10^5 = 30*10^8.

Ela said:   1 decade ago
6*5 = 30.

10^3*10^5 = 10^(3+5) = 10^8.

30*10^8.

Rajaneeesh said:   1 decade ago
6*5 = 30.

5+3 = 8.

= 30*10^8.

Shailu said:   1 decade ago
6*5 = 30.

10 is common for both the values,

Powers are added.

10^3+5 = 10^8.

Total value = 30*10^8.

Santhosh kumar said:   1 decade ago
The power dissipated by a resistor of 10 ohm when a current of 2A passes through it is.


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