Since the circuit is incomplete or not closed, no current flows in the circuit. as per ohm's law , Voltage is directly proportional to current and is given as
V = Voltage = i R where i = current , R = resistance 
as no current flows in the circuit, i = 0 
the resistance R can not be zero. hence 
V = 0 (R)
V = 0 Volts
so the magnitude of the Voltage is zero Volts
 
        
                    
             
        
        
        
Work needed = 23,520 J
<h3>Further explanation</h3>
Given
height = 12 m
mass = 200 kg
Required
work needed by the crane
Solution
Work is the transfer of energy caused by the force acting on a moving object  
Work is the product of force with the displacement of objects.  
Can be formulated  
W = F x d  
W = Work, J, Nm  
F = Force, N  
d = distance, m  
F = m x g
Input the value :
W = mgd
W = 200 kg x 9.8 m/s²x12 m
W = 23520 J
 
        
             
        
        
        
Straw polls are considered to be a form of biased sampling. An example of a straw poll is an unofficial vote like who you would like to be the President without actually casting your ballot.
        
             
        
        
        
The answer is letter C. 1.2 10^-11 N up
Solution:
F= Bqvsin(theta)
theta = sin 90 = 1 
F= 1.4 T * 1.6x10^-19 * 5.2x10^7 ms^-1 
F= 1.16 x 10^-11 N 
Then the direction is upward.