s 0Miles (short), 150 Miles(medium), and 300 Miles (long).
Explanation:
Answer:
(A) Maximum voltage will be equal to 333.194 volt
(B) Current will be leading by an angle 54.70
Explanation:
We have given maximum current in the circuit 
Inductance of the inductor 
Capacitance 
Frequency is given f = 44 Hz
Resistance R = 500 ohm
Inductive reactance will be 
Capacitive reactance will be equal to 
Impedance of the circuit will be 
So maximum voltage will be 
(B) Phase difference will be given as 
So current will be leading by an angle 54.70
Answer:
c
Explanation:
This is because many things, such as pcs, over heat
Answer:
a) 22.5number
b) 22.22 m length
Explanation:
Given data:
Bridge length = 500 m
width of bridge = 12 m
Maximum temperature = 40 degree C
minimum temperature = - 35 degree C
Maximum expansion can be determined as

where , \alpha is expansion coefficient
degree C
SO, 

number of minimum expansion joints is calculated as

b) length of each bridge

Because of the skin depth effect, the current at high frequency tends to flow at very low depth from radius. Then at high frequency the effective cross section of the wire is narrower than at DC.
Fro example skin depth at 100 kHz is 0.206 mm (0.008”), a wire more thicker than AWG26 could be a waste of copper, better use a bunch of thin wire (Litz wire) to rise the Q factor.