200 MBtu of heat
Explanation:
As provided in the question, heat supplying natural gas furnace operates at 60% efficiency. It means that out of 100 units of heat energy produced by the furnace, only 60 units of heat can be transferred.
Thereby as the demand of the heat energy is 120 MBtu, amount of gas that needs to be purchased equals-
∴ 60% of (cubic metres of gas that needs to be purchased) = 120 MBtu
⇒ (60/100) * gas = 120
⇒ Gas= 120*100/60
∴ Cubic metres of gas that needs to be purchased= 200MBtu
Answer:
Explanation:
At the time when the capacitor starts charging , current through will be maximum .
Current in the circuit = 10 / 100 = .1 A .
This is called displacement current Id = .1 A .
magnetic field between the plates will be due to this displacement current .
Magnetic field lines will be circular in shape.
If B be the magnetic field , we shall apply ampere's circuital law to find magnetic field due to displacement current at a distance of 5 cm from axis.
∫ B dl = μ₀ Id
B x 2π x .05 = 8.85 x 10⁻¹² x .1
B = 2.82 x 10⁻¹² T .
The line charge E-field Ec = λ/(2πr*e0),
where λ = charge/length and e0 is the permittivity constant = 8.8542E-12 F/m.
<span>The point charge E-field Ep = kq/r^2 where electrostatic constant k = 1/(4π*e0) = 8.99E9 N-m^2/C^2.</span>
Answer:
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Explanation:
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