Answer: 0.4 km/h
100 m = 0.1 km
15min./60min. = 0.25 hr
so, divide the total distance (100 m) by the total time (15 min)
0.1 km/0.25 hr = 0.4
A metallic wire carrying current is not charged - it is electrically neutral.
This is because a wire, or any type of conductor, cannot store charge - the fact that it is carrying current means that charge carriers that already existed in the wire are in motion. There are as many electrons as there are protons in the wire, which makes it neutral - there is no buildup of charge.
Answer:
1.25 turns
Explanation:
From Transformer equation,
Ns/Np = Vs/Vp............................ Equation 1
Where Ns = Secondary turns, Np = Primary turns, Vs = secondary Voltage, Vp = Primary Voltage.
make Ns the subject of the equation 1
Ns = NpVs/Vp.......................... Equation 2
Given: Np = 100 turns, Vp = 120 V, Vs = 9600 V
Substitute into equation 2
Ns = 100(120)/9600
Ns = 1.25 turns.
Hence the are 1.25 turns in the secondary coil = 1.25 turns
False because the first law of motion is the crash I think I’m in middle school
The answer is B. Transfer electrons
