A.từ A về K
T nghĩ vậy chứ ko bt đúng ko :))
Answer:
material, eg copper, has lower resistance than steel.
length - longer wires have greater resistance.
thickness - smaller diameter wires have greater resistance.
temperature - heating a wire increases its resistance.
Explanation:
Plz mark brainliest thanks
Answer:
3) Dims in, Brightens out
Explanation:
The relationship between the inductance of a coil and the current is inverse.
As the rod is thrusted into the solenoid, the inductance increases, which in turn decreases the current and the bulb gets dimmer. This is also because some magnetic force is drawn away from the solenoid and the battery.
When the rod is removed, the inductance of the solenoid decreases, the current increases, and the bulb becomes brighter.
It probably does. I'm not 100% sure about it, but a thicker wire would increase the number of positive and negative charges in it.
Answer:
cross out the false piece in blue and write the true piece in red
