Use the diagram above to calculate the current, I.
0.60A
0.97A
1.03A
5.00A
Correct answer is B
\(\frac{1}{R} = \frac{1}{R_1} + \frac{1}{R_2}\)
= \(\frac{1}{6} + \frac{1}{4}\)
R = \(\frac{12}{5} = 2.5\Omega\)
R = 2.4 + 10 = 12.4
V = IR
I = \(\frac{v}{R} = \frac{12}{12.4} = 0.97\)
Capacitors are used in the following devices, except
water pumping machines
ceiling fans
electric irons
television sets
Correct answer is C
No explanation has been provided for this answer.
decrease
increase
remain the same
increase and collapse immediately
Correct answer is B
No explanation has been provided for this answer.
As the air column of length L in an air pipe decreases, the frequency of the sationary wave emitted
decreases
increases
varies as L2
varies as \(\sqrt{L}\)
Correct answer is A
No explanation has been provided for this answer.
The amplitude of a sound wave determines its
frequency
quality
loudness
pitch
Correct answer is C
No explanation has been provided for this answer.
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