0.1T...........................................................
Answer:
Explanation:
given,
inductance of solenoid = 2.07 μ H
winding of the wire = 1.19 m
Using formula of inductance
L is the inductance
N is number of turns of the coil
μ₀ is permeability of free space
L is length of winding
N (2π r) = 1.19
squaring both side
4π(N²(πr²))=1.19²
N² A = 0.113
now
Answer:
1. Yes, if the elephant is standing still.
2. impulse acting on it.
Explanation:
Momentum is the product of mass and velocity. A change in momentum occurs when any of the quantities change. A change in momentum is equal to impulse acting on it. A change in momentum per unite time generates force.
P = m v
ΔP = Δm v or mΔv
F = ΔP /Δt
Impulse, F Δt = ΔP.
An ant has negligible mass in comparison to an elephant. Thus, an ant can have more momentum only when the elephant is standing still. Then, the momentum of the elephant would be zero as it would have zero velocity. and a moving ant would have more Momentum.
The change in momentum of an object is impulse acting on it.
Impulse, F Δt = ΔP.
