Answer:
53.63 μA
Explanation:
radius of solenoid, r = 6 cm
Area of solenoid = 3.14 x 6 x 6 = 113.04 cm^2 = 0.0113 m^2
n = 17 turns / cm = 1700 /m
di / dt = 5 A/s
The magnetic field due to the solenoid is given by
B = μ0 n i
dB / dt = μ0 n di / dt
The rate of change in magnetic flux linked with the solenoid =
Area of coil x dB/dt
= 3.14 x 8 x 8 x 10^-4 x μ0 n di / dt
= 3.14 x 64 x 10^-4 x 4 x 3.14 x 10^-7 x 1700 x 5 = 2.145 x 10^-4
The induced emf is given by the rate of change in magnetic flux linked with the coil.
e = 2.145 x 10^-4 V
i = e / R = 2.145 x 10^-4 / 4 = 5.36 x 10^-5 A = 53.63 μA
There is a ner force of 15 N allowing Levi and Clara to mobe the box.
Answer:
Explanation:
The magnetic field due to straight wire is into the square coil.
As the current in straight wire decreases the magnetic flux in the coil decreases
. The induced magnetic field is into the coil.The induced current is along +y direction
Answer:
<h2>
242.5kPa</h2>
Explanation:
According to one of the gas laws, 
Given P1 = 240.0kPa, T1, 15.0°C, T2 = 18.0°C, P2 = ?
Substituting this values into the equation, we have;

Cross multiplying we have;
288P2 = 240*291

The new pressure is 242.5kPa
Answer: The correct answer is A.
Explanation:
To avoid over driving your headlights, cool your headlights periodically by switching to your parking lights.
It is difficult to stop in the distance you see ahead of you at night without using headlights. Otherwise, there may be chances of occurring an accident.
Avoid to use the high beams is used whenever you drive at night. Suppose, if the car is coming in front of your car then in this case the drivers to have a flash blindness. As he gets bright light in his eyes. Otherwise, there may be chances of occurring an accident.
Therefore, to avoid over driving your headlights, cool your headlights periodically by switching to your parking lights.