Answer: Option C) 11.25 A
Explanation:
Given that:
Voltage V = 90 volts
total current I = ?
Three resistors each with 40 Ω, 30 Ω, and 15 Ω in parallel, the equivalent resistance of the combination (Rtotal) of the circuit is as follows:
i.e 1/Rtotal = (1/R1 + 1/R2 + 1/R3)
1/Rtotal = (1/40Ω + 1/30Ω + 1/15Ω)
1/Rtotal = (3 + 4 + 8)/120Ω
1/Rtotal = 15/120Ω
1/Rtotal = 1/8Ω
To get the value of Rtotal, cross multiply
Rtotal x 1 = 8Ω x 1
Rtotal = 8Ω
Then, apply the formula V = I x Rtotal
90 volts = I x 8Ω
I = 90 volts / 8Ω
I = 11.25 Amperes
Thus, the total current used by the three lamps is 11.25 Amperes
Although green light has a lower frequency than the blue
light, but green light has the longer wavelength than the wavelength of blue
light. The wavelength of green light is longer by a small margin than the
wavelength of the blue light. Red light has the highest wavelength among all
the available colors of light. Any color of light is nothing but an
electromagnetic wave that enables us to see things around us. Humans mostly can
see wavelengths between the Electromagnetic spectrum and the Ultra violet region.
Answer: D) All of the above
Explanation:
As for me, there are two suitable answers for the question represented above and here is a short explanation why I consider these two to be correct :
D. The horizontal velocity of the projectile and <span>B. The length of time before it lands
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-- this led me to answers! Hope everything is clear! Regards!<span>
</span>
Answer:
Mercury
Explanation:
Mercury is the closest planet to the sun followed be Venus. Though Mercury is the closest Venus is actually the hotest planet
