<span>Voltage overcomes the resistance of the electromagnet winding to force a current through that resistance. The field strength is proportional to the coil current. More voltage pushes more current. More voltage builds up the current faster, as well as forcing it to a higher final value. </span>
Answer:
a) we know that resistance is directly proportional to the length of the conductor as length increases the resistance also increases so to direct the current with least resistance, then the direction is perpendicular to side B only other sides have a larger length than B.
b) = 4.35 × 10⁻⁴ m/s
time = 229.56 s
Explanation:
Given:
a) we know that resistance is directly proportional to the length of the conductor as length increases the resistance also increases so to direct the current with least resistance, then the direction is perpendicular to side B only other sides have a larger length than B.
Dimension = 0.2m × 0.1m × 0.02m
ρ = 1.69×10⁻⁸ Ωm
= 8.49 × 10²⁸ e−/m³
Potential difference across the solid = 0.001 V
Now,
from Ohm's law V = I × R
here
V is potential difference
I is the current
R is the resistance
or
R =
also,
R =
Here, l is the length
A is the area
and,
the drift speed, =
substituting value of I in the above equation, we get
=
on substituting the values, we get
or
= 4.35 × 10⁻⁴ m/s
also,
the time taken, t =
=
= 229.56 s
The answer is 40 kg. m/s.
Formula for momentum:
p=mv
p=(10 kg.)(4 m/s)
So, therefore, the final answer is p=40 kg. m/s.
I hope this helped answer your question. Enjoy your day, and take care!
Answer:
i) 0.9504
ii) 0.0452
Explanation:
Given data: reliability of hydraulic brakes= 0.96
reliability of mechanical brakes = 0.99
So the probability of stopping the truck = 0.96×0.99= 0.9504
At low speed
case: A works and B does not
= 0.96×(1-0.99) = 0.0096
case2 : B works and A does not
= 0.99×(1-0.96) = 0.0396
Therefore, probality of stopping = 0.0096+0.0396 = 0.0492
Answer:
A). Both prokaryotic cell and eukaryotic cel contain cytoplasm
Explanation:
The cytoplasm is the fluid made mostly of water, protein, and salt. It is the main component that fills a cell.
Prokaryote and eukaryotes are the classification of cell-based on if the cell has a nucleus or not. Eukaryotes have a nucleus and considered to be more complex than prokaryotes. Both prokaryotic and eukaryotic cells should have cytoplasm and cell membranes.