Answer:
1/0.0545
Explanation:
The transformer have a ratio of the primary turns to the secondary turns equivalent to the ratio of the voltage it is changing. If we have 6.0 V in the secondary (output), and 110 V in the primary (input) the ratio of the voltage is 6/110 = 0.0545, so the ratio between turns in the transformer is 1/0.0545 (for each turn in the primary, the transformer has 0.0545 turns in secondary)
Answer:
t = 1030 s
Explanation:
Let's start by calculating the resistance of the coil,
V = I (R + ri)
R = V / I - ri
R = 10/10 -0.03
R = 0.97 Ω
Now we can calculate the power supplied to the water
P = I2 R
P = 10 2 0.97
P = 97 w
Work energy is power for time
E = W = P t
t = W / P
t = 100 103/97
t = 1030 s
Answer:
The magnetic flux change is 0.0877 Wb.
Explanation:
Given that,
Area = 0.0633 m²
Angle = 0°
Magnetic field changes


We need to calculate the magnetic flux change
Using formula of flux


Where, B = magnetic field
A = area
Put the value into the formula


Hence, The magnetic flux change is 0.0877 Wb.
Bit of an odd question. Power Plants are known to use water-powered turbines to generate electricity, but can also make use of nuclear fission.
When driver see the child standing on road his speed is 20 m/s
So here at that instant his reaction time is 0.80 s
He will cover a total distance given by product of speed and time



now after this he will apply brakes with acceleration a = 7 m/s^2
so the distance covered before it stop is given by



so the total distance covered by it


<em>so it will cover a total distance of 44.6 m</em>