An object is placed on a surface. A student tries to apply various combinations of forces on the object. Which pair of forces wi
1 answer:
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Explanation:
Given that,
Two resistors 4.5 Ω and 2.3 Ω .
Potential difference = 30 V
When they are in series, the current through each resistor remains the same. First find the equivalent resistance.
R' = 4.5 + 2.3
= 6.8 Ω
Current,
So, the current through both lightbulb is the same i.e. 4.41 A.
When they are in parallel, the current divides.
Current flowing in 4.5 resistor,
Current flowing in 2.3 ohm resistor,
In parallel combination, are brighter than bulbs in series.
Answer:
d. Relative humidity increases.
Explanation:
The expression of relative humidity in terms of absolute humidity, absolute pressure and saturation pression at measured temperature is:
When temperature decreases, the saturation pressure decreases also and, consequently, relative humidity increases. Therefore, the right answer is option D.
Answer:
595391.482946 m/s
Explanation:
E = Energy = 1.85 keV
I = Current = 5.15 mA
e = Charge of electron =
t = Time taken = 1 second
m = Mass of proton =
Velocity of proton is given by
The speed of the proton is 595391.482946 m/s
Current is given by
Number of protons is
The number of protons is