Electrical Engineering - Energy and Power - Discussion

Discussion Forum : Energy and Power - General Questions (Q.No. 20)
20.
Three hundred joules of energy are consumed in 15 s. The power is
2,000 W
2 W
20 W
200 W
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
8 comments Page 1 of 1.

CHAVITINA RAMAKRISHNA said:   9 years ago
POWER = WORK/TIME.
P = W/T.
P = 300joules /15sec = 20 watts.

Hope it is understandable.
(3)

Affan said:   1 decade ago
Given is 3000 J of energy not 300. Can anyone explain?

Harilal said:   1 decade ago
Energy = p/t.
p = 300/15 = 20.

Vivek said:   1 decade ago
Power = energy / time.
= 300/ 15 = 20w.
= 20w.

Shazia said:   1 decade ago
Energy=Power*Time.
Power=Energy/Time.
Power=300/15.
P=20W.
(1)

Manish said:   1 decade ago
The Energy E = P*t
E/t = P

300/15 = P
P = 20 W

DEV said:   1 decade ago
W=J/SEC.

W=300/15= 20W

Babu said:   1 decade ago
Will you explain it?

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