20 POINTS! TRUE OR FALSE:
If a stationary box does not move when you push against it is because of kinetic friction.
A) TRUE
B) FALSE

I believe that it is A) True

Disclaimer: I'm not quite sure. We learned about this recently though so possibly I'm right. Good luck though!

Explanation:

adding a(n) to an electric circuit would increase the magnetic field around a wire;

b. solenoid

a solenoid is a type of electromagnet whose purpose is to generate a controlled magnetic field.

if the purpose of the solenoid is instead to impede changes in the electric current, a solenoid can be more specifically classified as an inductor rather than an electromagnet.

when a device is used in a circuit in which the voltage is 81 v, the current flowing through the device is 3 a. what is the resistance of the device?

a. 27 ω

b. 40.5 a

c. 243 ω

d. 243 a

the correct answer is a. 27