We are given that there are two capacitors:
4.20 uf
8.50 uf
A. In parallel
The equivalent capacitance of capacitors is similar to
calculating that of a current, they are added when in parallel. Therefore the
equivalent capacitance is:
equivalent capacitance = C1 + C2 + C3 + ...
equivalent capacitance = 4.20 uf + 8.50 uf
equivalent capacitance = 12.70 uf
B. In series
When the capacitors are placed in series, the formula for
the equivalent capacitance is:
equivalent capacitance = 1 / (1/C1 + 1/C2 + 1/C3 + ...)
equivalent capacitance = 1 / (1/4.20 + 1/8.50)
<span>equivalent capacitance = 2.81 uf</span>
The feel of weight comes due to the normal reaction force given by the support. Hence, the condition of weightlessness is when the normal reaction force becomes zero. So, during free fall there is no support which can provide the normal reaction. Hence, the bungee jumper feels weightless as she falls towards the earth because of the lack of support force that balances gravity.
Hence, the answer is 3.
The halo extends farther from the nucleus
Answer:
1.35 A
Explanation:
Applying,
V = IR
I = V/R..................... Equation 1
I = Current, V = Voltage, R = Resistance.
But,
R = Lρ/A............... Equation 2
Where L = Length of the wire, ρ = resistivity, A = Cross-sectional area of the wire.
Sustitute equation 2 into equation 1
V = AV/Lρ............... Equation 3
From the question,
Given: V = 0.7 V, A = 0.290 mm² = 2.9×10⁻⁷ m², L = 1.5 m, ρ = 10×10⁻⁸ Ω.m
Substitute these values into equation 3
I = (0.7× 2.9×10⁻⁷)/(1.5× 10×10⁻⁸ )
I = (2.03×10⁻⁷)/(15×10⁻⁸)
I = 1.35 A