Explanation:
Given that,
Radius of the coil, r = 4.2 cm
Number of turns in the coil, N = 500
The magnetic field as a function of time is given by :

Resistance of the coil, R = 640 ohms
We need to find the magnitude of induced emf in the coil as a function of time. It is given by :

Hence, this is the required solution.
When a spoon is in a cup of water, is called refraction.
<em>the energy that is released in the chemical reactions is the exothermic energy ( stored ) in the bonds of reactants... :)</em>
Answer:
angle is denoted by /_ , see in explanation
Vertebrate Zoology, I’m pretty sure