120 w
360 w
720 w
2400 w
Correct answer is C
Power - IV
I = \(\frac{P}{V}\)
= \(\frac{12000}{2000}\)
I = 6A
Power loss = I\(^2\)R = 6\(^2\) x 20
= 720 W
4.6v
6.0v
8.5v
12.0v
Correct answer is C
Vo = V\(\_{rms}\) x \(\sqrt{2}\)
Vo = 6 x 1.414
Vo = 8.484
= 8.5v
The diagram given illustrates two charged particles W and X. The charges on W and x are respectively
negative; negative
negative; positive
positive; positive
positive; negative
Correct answer is A
No explanation has been provided for this answer.
All electromagnetic waves in a vacuum have the same
wavelength
frequency
speed
amplitude
Correct answer is C
No explanation has been provided for this answer.
0.5
1.5
2.0
3.0
Correct answer is D
\(\frac{1}{U} + \frac{1}{V} = \frac{1}{F}\)
\(\frac{1}{V} = \frac{1}{F} - \frac{1}{U}\)
\(\frac{1}{V} = \frac{1}{15} - \frac{1}{20}\)
\(\frac{1}{V} = \frac{\text{4 - 3}}{60}\)
\(\frac{1}{V} = \frac{1}{60}\)
V = 60cm
M = \(\frac{V}{U} = \frac{60}{20}\)
M = 3.0cm
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