Electrical Engineering - Alternating Current and Voltage - Discussion
Discussion Forum : Alternating Current and Voltage - General Questions (Q.No. 18)
18.
A square wave has a period of 60 
s. The first odd harmonic is
s. The first odd harmonic isDiscussion:
18 comments Page 2 of 2.
Deinie said:
6 years ago
What is the formula for 1st harmonic, 2nd harmonic? Please tell me.
(1)
Sushma said:
6 years ago
If they ask 1st harmonic means you have to multiply f * 2 since harmonic starts from 2, 3, 4. If they mention odd or even then you have to take which is odd and even and multiply it.
(1)
Jeevani said:
6 years ago
Thanks @Sushma.
Sonu said:
6 years ago
Why we use the Kilo HZ?
Mohamed said:
6 years ago
Because the time is in a microsecond.
M.aqsam raza said:
5 years ago
TIME=60us.
f=1/t.
=16.66.
3 harmonics=3*16.66.
=49.98~=50KHZ'.
f=1/t.
=16.66.
3 harmonics=3*16.66.
=49.98~=50KHZ'.
(1)
Ruio said:
5 years ago
But the micro second is 10^-6.
Abhisek said:
5 years ago
Yes @Ruio.
6*(10^-6) , change 60us in hz.
f = 1/t=1/(60*10^-6) = (10^5)/6.
Then you will get 16666.66 Hz = 16.66 KHZ.
Now, For 1st odd harmonic = (3 * 16.66)KHZ = 50KHZ.
6*(10^-6) , change 60us in hz.
f = 1/t=1/(60*10^-6) = (10^5)/6.
Then you will get 16666.66 Hz = 16.66 KHZ.
Now, For 1st odd harmonic = (3 * 16.66)KHZ = 50KHZ.
(1)
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