Answer:
200 seconds
Explanation:
1,800 divided by 90 = 200
Answer:
Magnitude of induced emf will be 
Explanation:
We have given radius of the circular loop r = 19.7 cm = 0.197 m
So area of the circular loop 
It is given that magnetic field is changing as 
Emf induced in the circular loop is equal to 
So emf induced will be equal to 
So magnitude of induced emf will be 
Answer:
<em>The primary coil has 13,400 turns</em>
Explanation:
<u>Voltage Transformers</u>
A transformer is an electrical apparatus that converts an alternating electrical voltage to another. Step-down transformers lower the voltage from higher levels (kilovolts) to consumer levels (120/240 Volts).
The ratio between both voltages can be computed as

Where V1 is the primary voltage and V2 is the secondary voltage. This ratio depends on the turns ratio of the coils wounded in a common magnetic core.

Being N1 the number of turns of the coils of the primary side and N2 the number of turns in the secondary coil. Both relations give us

Solving for N1

We have:

Calculate N1

The primary coil has 13,400 turns
Answer:
c) 2Q
Explanation:
From the given information:
The pressure inside a pipe can be expressed by using the formula:

Since the diameter in both pipes is the same, we can say:

where;
length of the first pipe A
and the length of the second pipe B 
Since the difference in pressure is equivalent in both pipes:
Then:




Answer:
11109.825 N
Explanation:
Given Data:
total mass =m=1510 kg
initial acceleration (a) =0.75g ( g=9.81 m/s² )
F=ma
= (1510)*( 0.75*9.81)
= 11109.825 N