Answer:
<h3>The 28 loops wound on the square armature</h3>
Explanation:
Peak output voltage V
Area of square armature
Magnetic field T
Angular frequency
According to the law of electromagnetic induction,
Where number of loops of wire.
≅ 28
Thus, 28 loops of wire should be wound on the square armature.
Answer: The rate of energy transfer by a 5 ohms resistor when there is a current of 0.2 A in it.= 1.25 watt.
Explanation:
- The rate of energy transfer from one point to another is known as power.
- Its SI. unit is <em>Watt.</em>
Formula to compute power:
Power = , I = cureent, R = resistance.
Given R = 5 ohm , Current = 0.5 A.
Then, power =
Hence, the rate of energy transfer by a 5 ohms resistor when there is a current of 0.2 A in it.= 1.25 watt.
Answer:
u would use the formula for electrostatic force of attraction which is
F = q1q2 / 4pie r^2
Explanation:
i think it would 47 and 47 =2209 ,divide by (4 × pie × 8.98755 × (1.8 ×(10 ^3) )^2)
Nothing happens to the mirror.
However, if the ray is within some suitable range of
wavelengths, the ray is reflected from the mirror's surface.