Given that,
Resistance of wire
R = 6.00 Ω
Cross sectional area
A = 300cm² = 0.03m²
Initial magnetic field Bi = 0.2T
Final magnetic field Bf = 3.6T
Time taken t = 0.5s
Current?
From ohms law
V=iR
Then, I = V/R
Therefore, we need to find the induced EMF in the coil
ε = -dΦ/dt
Where Φ =BA
Where the Area is constant
ε = -dΦ/dt = -d(BA)/dt
Since A is constant
ε = -A•dB/dt
ε = -A•(∆B)/∆t
ε = -0.03(3.6—0.2)/0.5
ε = -0.204 V
Then, the magnitude of the EMF is 0.204 V
So,
I = V/R
I = 0.204/6
I = 0.034 Amps
I = 34 mA
Option B is correct.
Answer:
<em>The table is 2.08 m high</em>
Explanation:
<u>Horizontal Motion</u>
When an object is thrown horizontally with a speed vo from a height h, the range or maximum horizontal distance traveled by the object can be calculated as follows:
If we know the range d = 0.15 m and the speed v = 0.23 m/s, we can solve the above equation for h:
The table is 2.08 m high
Answer:
its true!!
Explanation: have a nice day !!
Answer:
By heating all the water molecules which changes the thermal energy of the food
Explanation:
I might be wrong but I’d say the first one
Answer:
•when a food service worker touches food
Explanation:
The worker is physically putting his hands on the food, therefore contaminating it which whatever’s on his hands
-YW!! <33
