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 .
All magnets possess a property called polarity--that is, a magnet's power of attraction is strongest at its opposite ends, usually called the north and south poles. The north and south poles attract each other, but north repels north and south repels south. All magnets attract iron.
Answer:
32.087 m/s
Explanation:
Velocity Initial = 5.6 m/s
time= 2.7
acceleration = 9.81
Velocity final = ?
Vf = Vi + at
Vf = (5.6) + (9.81)(2.7)
Vf = 32.087 m/s
Answer:
E = 1.45 x 10⁹ J = 1.45 GJ
Explanation:
According to the law of conservation of energy:
Potential Energy Lost by Satellite = Kinetic Energy + Internal Energy
where,
E = Internal Energy = ?
m = mass = 400 kg
g = acceleration due to gravity = 9.81 m/s²
h = height = 500 km = 500000 m
v = speed on ground = 1.6 km/s = 1600 m/s
Therefore,
<u>E = 1.45 x 10⁹ J = 1.45 GJ</u>