Answer:
The magnitude of the magnetic field inside the solenoid is 1.5 × 10⁻²T
Explanation:
Given that,
Length = 40 cm
Radius = 0.040 cm
Number of turns = 400
Current = 12 A
We need to calculate the magnetic field
Using formula of magnetic field inside the solenoid

Where,
=Number of turns per unit length
I = current
B = magnetic field
Put the value into the formula

Hence, The magnitude of the magnetic field inside the solenoid is 1.5 × 10⁻²T
Answer:
The hottest temperature is 
Explanation:
From the question we are given



Generally converting
to Fahrenheit

=> 
=> 
Converting
to Fahrenheit

=> 
=>
Now comparing the temperature in Fahrenheit we see that
is the hottest
Answer:
im not 100% sure i should be doing this but i found a website that will help a ton.
https://geo.libretexts.org/Courses/Gettysburg_College/Book%3A_An_Introduction_to_Geology_(Johnson_Affolter_Inkenbrandt_and_Mosher)/02%3A_Plate_Tectonics/2.01%3A_Alfred_Wegener%E2%80%99s_Continental_Drift_Hypothesis
Answer:
Explanation:
I = V/R = 120 V/ 50 Ω = 2.4 A
P = VI = 120(2.4) = 288 W = 288 J/s
288 J/s (15 min(60s / min)) = 259,200 J
or the electric company would charge for
288 W / (1000 W/kW)•(15/60) hr = 0.072 kW•hr
At $0.20 / kW•hr, that would be under 1½ cents