Answer:
Infra red waves, visible light waves,
Explanation:
Answer: D)
Explanation:
In a RL circuit, as current can't change instantaneously, it starts from 0, till it reaches to the maximum possible value, according to Ohm's Law, i.e., E/R.
At any time, the current in the circuit (which is the same that passes through the inductor as it's a series circuit) is explained by the following equation:
I = E/R (1 - e-tR/L)
The quotient L/R is called the time constant of the circuit, and defines the time needed for the current reaches to its steady-state value.
If L is larger, the time constant will be larger, and it will take more time to the current to reach to its steady-state value.
Answer:
11.87
Explanation:
final velocity^2= initial velocity ^2+ 2* Acceleration* distance
Final Velocity^2= 9*9+2*1.5.20
final velocity^2 = 141
final velocity = 11.87